Last Updated: 28/06/14 8:02pm
Brazil have booked their place in the quarter-finals after the most dramatic of encounters in Belo Horizonte. Thanks for joining us!
AET: Still nothing between these two after extra-time so we're going to penalties in Belo Horizonte. Do not go anywhere! 1-1.
CHANCE! Pinilla heads the corner clear but Ramires picks it up and fires just wide of Bravo's post from outside the box.
Hulk smashes one well over the bar from some distance and Scolari is cutting a frustrated figure on the touchline with penalties looming.
Willian's free-kick is cleared and Chile now have 10 men behind the ball as they look as though they'd be delighted to take this one to penalties.
Willian cuts inside and floats a cross towards the head of Jo but the Chile defence shut them out once again. Brazil continue to push forward with Luiz desperate to get involved in the attacks.
Neymar looks to burst forward but finds himself outnumbered by Chile defenders and the move breaks down for Brazil.
Diaz skies his first-time effort way over the bar after being teed up on the edge of the area following some patient build-up play from Chile.
Alves then takes his turn to hit one from range but Bravo is happy to watch it all the way as it flies over his crossbar.
Pinilla brings the ball under control just outside the Brazil area and turns away from his man with his sights set on goal, only to get his strike all wrong as it sails harmlessly behind.
Neymar is unable to bring the ball under control down the left but Chile are wasteful with the loose ball as it is hoofed up-field and straight to the feet of Cesar in goal.
Medel has hurt himself following that Brazil corner and he leaves the field on a stretcher to be replaced by Rojas.
CHANCE! Jo heads over from inside the six-yard box after rising to meet Neymar's corner at the near post.
HT: Sanchez fires the resulting free-kick wide and we're halfway through extra-time with nothing between these two. 15 more minutes of this and penalties will be needed to decide it. 1-1.
Alves goes into the book for clattering into the back of Pinilla. Chile free-kick in a decent position.
CHANCE! Hulk skips away from Diaz before getting a strike on target from distance. Bravo gets down well though and manages to beat it away with two strong hands.
Pinilla deliberately trips Luiz and is shown the yellow card as a result. Brazil free-kick just inside the Chile half.
Brazil are dominating possession but Chile have men back in numbers. Hulk gets to the byline down the right and manages to deliver a cross towards the backpost where Oscar heads straight into Bravo's arms.
Still no way through for either side as Jara blocks off Oscar down the right before Jo loses his footing inside the area and Bravo claims the loose ball.
Sanchez concedes a free-kick deep inside the Brazil half for pulling back Alves and the hosts can launch it forward. Jo holds up play down the right but is unable to keep it in touch.
Diaz is rather ambitious with the free-kick as he drills it well wide from at least 35 yards out despite Chile having men forward in the box to attack a cross.
Sanchez is pushed off the ball by Ramires and Chile have a free-kick just inside the Brazil half which Diaz stands over.
A ball over the top causes mayhem in the Chile defence as Jo and Bravo collide while challenging for it. The Chile keeper comes off the worse of the two but both seem okay to continue.
Neymar fires a free-kick towards goal but Pinilla stands firm to divert it behind for a corner with a strong header.
Hulk embarks on a surging run across the field before winning a free-kick in a dangerous position after being bundled over by Mena. Neymar stands over it.
Just a quick note before extra-time gets underway, David Luiz has been awarded the opening goal by FIFA.
FT: Howard Webb signals for the end of 90 minutes, but extra time is needed to separate these two. 1-1.
Pinilla is flagged for offside and that will surely be the last action in normal time as Brazil have a free-kick deep inside their own half.
Diaz drives forward before hitting an optimistic strike from range. It's going well wide but Alves feels the need to put it behind for safety with Pinilla lurking.
Brazil win the ball inside their own half and look to attack Chile at speed on the break. Ramires is well closed down though as the pressure on him forces a miscued pass.
Chile are coming forward now and look to have been boosted by the fresh legs of Pinilla. He flicks it back towards Mena but his cross is blocked.
Hulk has caused numerous problems down the left and he tries to take it beyond Medel and get a cross away. He takes it to the byline but his delivery cannons off the Chile defender, back against his own leg and behind for a goalkick.
Chile are in no rush on the ball as it's been all Brazil for the last 10 minutes or so. They're preparing a change as they look to stem the tide.
CHANCE! Hulk skips away from his man and bursts into the area. He fires towards the top corner but is denied by an outstanding save from Bravo before Jo's return cross is gathered by the Chile keeper.
Chile are just edging possession with 55 per cent of it as we approach the end of 90 minutes, but Jorge Sampaoli's side do appear to be tiring with Brazil pushing forward.
CHANCE! Alves is invited forward and he teases a diagonal cross into the area which Neymar rises to meet and heads straight at Bravo.
Medel heads wide to Isla after a long ball over the turn looked for the run of Jo. Hulk then tries to latch onto it but his cross can only find the arms of Bravo.
Aranguiz is slipped in behind the Brazil defence and looks to get a cross away, only for Oscar to come back and head clear. Jo takes the ball forward but is clipped as he does so and wins a free-kick.
The Brazil fans are urging their team on and in fairness to them, they have picked things up somewhat in the last few minutes. Chile are standing firm in defence though.
Hulk strides forward again and fancies his chances as he lets fly from range, only to miscue his effort as he watches it roll harmlessly behind for a goalkick.
CHANCE! Hulk picks up the pace and strides forward before sitting an inviting cross up towards Jo at the back post. The striker throws himself at it but the challenge of Mena appears to divert it behind for a corner. Howard Webb gives a goalkick though.
Hulk does well to usher the ball behind for a goalkick after Sanchez looked to feed Isla down the right wing.
Oscar is blocked by Mena as another Brazil move comes to nothing. They're yet to find any sort of rhythm this second half, but Ramires looks set to be introduced.
Neymar is flagged for offside as he looked to latch onto Luiz's long ball over the top. Chile try something at the other end but Jara can only find touch as he switches play towards Isla.
Vidal then goes down inside the Brazil area for Chile but play is waved on once again. You get the feeling that this game could explode at any moment.
Hulk is found inside the area in a wide position. His path is blocked off by Aranguiz as he goes to ground and the striker half-heartedly appeals for a penalty, only for Webb to award a goalkick.
CHANCE! Cesar denies Aranguiz with an outstanding save to keep the score level. Isla burst down the left and cut it back to the midfielder, whose effort was flying in, only for Cesar to divert it behind with a smart block.
Alves does well to clear under pressure from Sanchez before Luiz slices his clearance out for a Chile throw.
Isla clips Silva on the edge of the Brazil area and the hosts have a free-kick deep inside their own half. Jo looks to be preparing to come on for them.
Fernandinho is lucky to avoid going into the book after clattering into Silva before Marcelo is then taken out over on the far touchline. The second half is yet to get going due to the number of fouls.
Luis Gustavo is shown the yellow card after hacking down Vidal and Chile have a free-kick in a deep crossing position.
Scolari is fuming on the touchline and replays suggest that Hulk brought the ball down with his shoulder more than his actual arm. There will be uproar if that costs them.
Hulk is shown the yellow card for allegedly using his hand to control the ball for that disallowed goal.
DISALLOWED GOAL! Hulk has the ball in the back of the net and wheels away in celebration, but the linesman's flag is raised for a handball as he tried to bring it down on his chest. It was a great ball over the top and a slightly scuffed finish, but that is a huge call.
Oscar is found by Marcelo down the left but the Chelsea man's cross is poor and easily headed clear.
Alves hooks a cross into the area towards Fred and Neymar. Bravo watches it all the way as he plucks it from the air with two hands and looks to set Chile away.
It's been a much more cagey start to this second half, with the game being played at a slightly lower tempo to the first. Neither side have been able to keep the ball just yet as Neymar is muscled off it by Isla as he looked to break.
Chile look to mount an attack but Sanchez is just unable to get onto the ball on the edge of the area and the move breaks down.
CHANCE! Fernandinho is found in space and is invited to shoot from distance. He lets fly but is losing his footing as he does so and his effort sails wide.
Cesar is then quick to smother the ball at the feet of Vargas with Luiz ushering it back towards the goalkeeper.
Diaz delivers the free-kick into the area but Cesar always looks confident as he comes off his line to punch clear.
Sanchez and Marcelo challenge in the air before Vidal is caught by Luiz and Chile have a free-kick in a crossing position.
No changes for either side at the break and Brazil look to immediately attack as Alves hooks a deep ball towards the back post.
HT: Howard Webb signals for half-time and it's all square in Belo Horizonte. Gonzalo Jara's own goal (David Luiz claimed it) gave Brazil the lead, but Alexis Sanchez hit back to equalise for Chile in what has been a very lively and physical opening 45 minutes. 1-1.
CHANCE! Sanchez feeds Aranguiz on goal and Cesar stands tall to block his strike before a scramble with Luiz results in a Chile corner.
A superb run into the area from Neymar wreaks havoc in the Chile defence. He sits a cross up towards the backpost but Fred and Fernandinho get in each others way as they challenge for the header.
Fred scuffs his initial strike before Bravo punches his return cross clear. The ball finds its way to Hulk outside the box but his effort flies wide.
CHANCE! Alves tries his luck from range and Bravo is forced to acrobatically tip his powerful strike over the bar for a Brazil corner.
Vidal pokes the ball towards goal and into the arms of Cesar, but the linesman's flag was raised anyway.
Francisco Silva is the second Chilean player to go into the book for a foul on - you guessed it - Neymar.
CHANCE! Oscar picks out Neymar with an inch-perfect ball over the top. He brings it down at ease and cuts inside before teeing up Fred, who bobbles his effort over the bar after a difficult bounce.
Luiz is pushed right up and finds himself in a dangerous position on the left wing. He looses the ball before hacking Vidal to the ground and conceding a free-kick.
Oscar swings a corner into the area but Bravo does well to come off his line and punch clear for Chile. Brazil continue to press though.
Chile are at sixes and sevens defending the corner as Bravo rushes out to the edge of his area. A goalmouth scramble ensues before Chile are able to clear thanks to their number of defenders back.
CHANCE! Oscar works the ball down the right and tees a cross up towards Neymar. He leaps well to meet it but his header deflects off Silva's back and behind for a corner.
Brazil will not be happy with that one. It started from a lacklustre throw-in deep inside their own half which Chile were alert to. Vargas stole it off Hulk to pick out Sanchez and he did the rest with a smart finish past Cesar.
Aranguiz picks out Vidal on the edge of the box and the Juventus midfielder twists and turns as he tries to find a sight of goal. Brazil get men back and Hulk helps out to shore things up.
Sanchez picks the ball up from deep and skips past Hulk before finding his path blocked off in midfield. Brazil attempt to counter but are unable to work an opening.
The referees have been told to allow the games to flow during the World Cup, but you would imagine that a yellow card will be on its way for the next player that clatters Neymar.
Neymar is on the receiving end of another tough tackle, this time from Vidal as the Chile midfielder goes straight through him with his boot. Neymar is receiving treatment on the pitch.
Alves manages to hook a cross into the area from the right but Brazil's only man forward, Fred, is lying on the ground after losing his footing in front of goal.
Neymar is clattered by Silva on the touchline and Brazil have a free-kick. The break in play just gives the players a quick chance to re-hydrate.
Hulk and Marcelo can't quite combine down the right before Fred then loses out inside the centre circle. Chile are growing in confidence but every Brazil touch is greeted with cheers from the crowd.
CHANCE! After a wave of Chile pressure, Brazil break through Neymar down the left. He strides towards goal before dragging a weak left-footed effort well wide.
Neymar and Medel tussle in the middle but Howard Webb allows play to continue with neither going in the book. This has been quite a feisty affair so far.
Diaz curls one in towards the area but a combination of Oscar and Fred clear Brazil's lines. Chile are now pushing for an equaliser, but they're yet to truly threaten Cesar's goal as Vargas is unable to find a way past Luiz.
Sanchez twists and turns on the edge of the edge but Gustavo steps in to find touch with his clearance. Marcelo then brings down Sanchez and Chile have a free-kick in a crossing position.
Replays suggest it could have been Chile defender Gonzalo Jara with the final touch on that one, but you tell that to David Luiz! He certainly celebrated like it was his.
Great delivery from Neymar, whose corner was flicked on by Thiago Silva, towards Luiz at the back post and the PSG defender was able to divert it beyond Bravo. Perfect start for Brazil.
Hulk whips the resulting free-kick towards the six-yard box at pace and Bravo is forced to punch it behind for a corner.
A quick burst of pace from Neymar sees him latch onto the loose ball in midfield and he strides through on goal. Chile do well to close him down and he is forced to cut inside before eventually giving the ball away.
Neymar looks to bend the free-kick into the far corner but there's not enough power behind it as Bravo can easily clutch with two hands.
Gustavo bursts forward and finds himself blocked off by Silva to win Brazil a free-kick right on the edge of the area. The angle is tight but Neymar stands over it.
Brazil think they should have a penalty as Hulk goes down inside the area under the close watch of Isla after exchanging passes with Neymar. Howard Webb waves their appeals away.
Marcelo steals it off the unassuming Sanchez and looks to play a quick one-two with Oscar on the edge of the box. Chile have men back in numbers though and are able to clear their lines.
This game has started at a lightening pace and both sides have shown themselves to be dangerous in attack as Cesar collects a low cross from Sanchez.
Luiz is equal to a searching ball over the top and Brazil come away with it. Fred picks up the ball inside the Chile half but his pass is wasteful and the move breaks down.
Sancez drops deep to collect the ball but has it instantly stolen from his reach by Gustavo and Brazil look to break. Neymar is involved on the halfway line as he looks to overcome that earlier knock.
Neymar seems to be suffering for Brazil as he receives treatment on the touchline. It looks to be an after-effect of that earlier challenge from Medel and Aranguiz. He returns to the field but is hardly running smoothly.
Hulk storms down the left wing as he powers away from Isla towards the byline. He works his way into a crossing position but can only pick out the grateful arms of Bravo.
An the other end, Diaz tries his luck from outside the box but Cesar is happy to watch it bounce wide for a goalkick.
CHANCE! The first sight on goal comes for Brazil as Hulk's dangerous-looking corner is headed clear to Marcelo on the edge of the area. He turns away from his marker before unleashing a strike just wide of Bravo's goal.
Lively start to this game and quite a physical one, too, as Neymar is sandwiched by Aranguiz and Medel on the halfway line. Gustavo is sent down the left wing and manages to win Brazil a corner.
Aranguiz is down for Chile after being clattered late by Fernandinho. Howard Webb ponders whether to book the Manchester City midfielder but decides that a Chile free-kick will suffice.
Fernandinho rises highest to head away the free-kick and Brazil can break through Hulk. He looks to take it over the halway line but is unable to find a man as the move comes to nothing.
What an atmosphere inside the Estadio Mineirao. Chile have an early free-kick and the chance to get a ball into the area, though, after Thiago Silva clipped Vidal.
Right then, the teams are out and kick-off is a matter of minutes away. Barcelona team-mates Neymar, Dani Alves and Alexis Sanchez shared a pre-match embrace in the tunnel, but expect few of those niceties on the pitch. Brazil entered the field arm in arm and belted out the passionate rendition of their national anthem that we have come to expect. Thanks for your emails and Tweets so far, feel free to keep them coming as the game unfolds.
While Chile boss Jorge Sampaoli says that his side are fearless: "The courage of the group, they have their heads held high and they are getting ready for the round of 16."
Brazil boss Luiz Felipe Scolari has been speaking to the media ahead of this game, and he sounded quite daunted by the prospect of facing Chile. He said: "Chile have a lot of quality. If I could choose, I would choose another opponent. South American teams are always tough."
Chris Green has been back in touch to ask: "It's early days yet, but who are you backing to win the World Cup?" I quite fancy Argentina, but think Germany are probably the strongest team. You can never rule out Brazil though! What do you lot reckon? Tweet: @ryanparrish1919 or email email@example.com.
Jheeva Subramanian has emailed in to say: "Take Neymar out of the Brazil side and they are an ordinary team. If Chile can keep Neymar quiet, then I think 2-1 for Chile."
There's still plenty of time remaining for you to get your thoughts and score predictions sent in. You can either Tweet me: @ryanparrish1919 or email firstname.lastname@example.org and I'll get them posted up here as we approach kick-off.
Chile were beaten 2-0 by Holland in their final Group B fixture on Monday, but Jorge Sampaoli's men have made great strides in this competition. After seeing off Australia to win 3-1 in their opening game, they then went on to dispatch the holders Spain with an impressive 2-0 victory that really made the world sit up and take note. Their talismanic midfielder, Vidal, returns to the side tonight after being rested for the defeat to Holland.
Brazil are the strong favourites tonight - 1/2 to win with Sky Bet - but you can never rule out Chile and they are 11/2 to cause an upset, while the draw after 90 minutes is 7/2. Hulk is yet to open his account this summer, but his odds have been boosted to 13/2 to score first tonight, while a repeat of Chile's 2-0 win over Spain is priced at 45/1.
Samuel (@SamuelMargo) on Twitter is predicting some late drama tonight. He says: "I think Brazil to win 2-1 with Fred scoring last minute winner."
That win over Cameroon marked Brazil's 100th World outing and the first of Neymar's brace was the 100th goal of this tournament. Brazil are unbeaten in their previous 40 matches on home soil, with their last defeat coming all the way back in 2002 in a friendly with Paraguay. Chile have never beaten the Selecao on Brazilian soil, losing 20 and drawing six.
The hosts have hardly set the world alight just yet this summer, but their 4-1 win over Cameroon showed glimpses of what we expected from Luiz Felipe Scolari's men as they secured top spot in Group A. Neymar has been the star man so far and he tops the scoring charts alongside Lionel Messi and Thomas Muller with four goals.
But over on Twitter Faisal Ahmed (@fuzzyy99) reckons there could be an upset on the cards. He says: "Can't wait for this encounter! I think Chile will shock the hosts today, with a 2-1 win, Neymar, Vargas and Sanchez scoring"
Thanks to Kieran Kiwi Mozzyson who has also emailed in to back Luiz Felipe Scolari's men. He says: "I predict 3-2 to Brazil with Chile doing well but Brazil doing just enough to finish them. Sanchez & Aranguiz to score for Chile and Neymar(2) and Oscar scoring."
Brazil have met Chile on three previous occasions at World Cups - all in the knock-out stages - and have been victorious each time, winning in 2010, 1998 and 1962. If that doesn't bode well for Chile, then neither will the fact that they have lost their two previous fixtures at this stage of the tournament - both against Brazil, incidentally!
Chris Green has been quick off the mark with his score prediction and he thinks it will be a comfortable win for the hosts. Chris says: "Brazil to win 3-0, with Alves and Neymar (2) scoring the goals."
So what do you reckon this evening? As always, your thoughts and score predictions are more than welcome throughout and will be posted here in the build up to kick-off. You can either Tweet me: @ryanparrish1919 or email email@example.com.
So there are the teams and both sides have made one change each from their previous outings. Fernandinho replaces Paulinho in midfield from the Brazil team that beat Cameroon 4-1, while Arturo Vidal returns in place of Felipe Gutierrez following Chile's 2-0 defeat to Holland.
Good afternoon and welcome to our live and interactive commentary as the knock-out stages of the World Cup begin in Belo Horizonte, with hosts Brazil taking on Chile at the Estadio Mineirao. A place in the quarter-finals is at stake for today's winner and this has all the makings of a classic with Jorge Sampaoli's side looking to spoil the party. The winner of tonight's clash between Colombia or Uruguay will await in Fortaleza next Friday for whoever wins here. Team news will be with us shortly...