Last Updated: 08/02/12 10:34pm
The final whistle blows after two tight affairs between Middlesbrough and Sunderland. The Premier League outfit needed extra-time to seal their place in the fifth round, with Sessegnon scoring the all important winner.
Sunderland holding the ball in Middlesbrough's half and win a free-kick with McMahon fouling Bardsley.
Boro try to make one more attack but lose the ball with Reech and Sunderland come forward and almost put the tie to bed with Meylor's finish rolling wide of the target.
Reach finds Bennett, who crosses from the right. It comes back out to Reach who goes close with his strike whistling over the bar. Unlucky for the youngster.
Mignolet pumps forward a free-kick to try and keep the ball clear, only to see it back in his half with Boro advancing. The home side are unable to create an equalising opportunity however.
Sessegnon walking gingerly and it looks as though he will be replaced with Sunderland having two subs at hand.
Middlesbrough go for an immediate response and have a penalty shout turned down after Richardson appeared to bring down Emnes. Replays show it would have been a soft decision to give it.
GOAL - SESSEGNON! Sunderland are finally winning and they probably deserve it. Sessegnon takes the ball forward towards the box and passes to Wickham. The young striker fails to get his shot off under pressure but the loose ball falls to Sessegnon who cooly slots the ball home. 2-1 to Sunderland.
Sunderland edging forward with McLean on the left. He knocks it back for Richardson to cross but it lacks quality.
Boro have a free-kick on the right wing but it is cleared and the first half of extra time is called to an end.
Best chance of extra-time so far as Hoyte's brilliant run on the right finds Emnes, who has his shot blocked. The ball then falls to McMahon who scoops it over.
Middlesbrough hit the ball forward and win a free-kick as Turner is penalised for his challenge on McMahon in the air.
A misunderstanding between Bardsley and Larsson on the right wing and the ball runs out of play for a Boro throw-in.
Bennett with a clear foul on Bardsley, handing Sunderland a free-kick for Larsson to swing in from the right.
A notably slower start to extra-time compared to the first 90 minutes, with tired legs becoming a major factor.
Gardner has a go from the edge of the area, but doesn't strike it cleanly and it swerves wide. The midfielder has taken plenty of shots today but has been largely wasteful.
Emnes again on the ball for Boro in a dangerous central area but he passes it straight to Turner, allowing Sunderland to advance.
Space opens up for Boro with Emnes on the ball, but he mishits his ball into the box towards Main and the danger ends. May have been a shot, not a good sign when it's unclear.
An exciting game, and 30 minutes more to come. If you fancy betting SkyBet have Middlesbrough 4/1 to win the match, Sunderland are 13/8 and and if you think we're heading for penalties that's available at 11/10.
Play is stopped just as Gardner is setting himself up for a shot on goal due to a pitch invader from the crowd.
Larsson's corner causes a bit of a scrap in the Middlesbrough box. Sessegnon's eventual strike balloons over.
Middlesbrough have a very good free-kick shout on the edge of the area declined by the referee as Bardsley barges Bennett.
Just as I say that Middlesbrough get the ball forward in Sunderland's half and search for a winner but the attack breaks down as Williams fouls Campbell for a free-kick.
Middlesbrough clear again and look like they will be under some prolonged pressure for these last ten minutes.
Gardner's ambitious effort goes very close and is tipped wide by Steele for a corner. Middlesborough scramble it clear but the visitors come forward again and Bardsley this time wins a corner as Steele parrys his powerful shot wide.
Good run by Sessegnon, who then tees it to Bardsley to cross, but it is cleared out for a throw-in on the right wing.
In fact it was Larsson who took a shot but it clips the wall on its way for a corner, which is claimed by Steele, who was unchallenged at the far post.
Middlesbrough have equiped themselves well tonight but Sunderland's Premier League quality is beginning to show.
Unlucky for Sunderland as some good passing finds Bardsley in plenty of space on the right. The right back strikes it sweetly from distance but it comes back off the post and the chance goes begging.
Williams enjoys a good run at the Sunderland defence, and tries to find Main to the right of the box, but overhits it slightly and the striker can't reach it before it runs out of play.
Sunderland break forward again and Sessegnon's cross meets the head of Larsson, but he fails to connect with it properly and it trickles wide.
That comes from Sessegnon who hits a rather hopeful strike. It finds the target though and Steele does well to parry wide.
The tempo has just calmed down a little. Sunderland still have possession though and are planning their next attack.
Gardner again taking the game by the scruff of the neck, and after a nice little turn to beat his man, goes for goal from distance. He is unable to hit the target this time.
Right on cure, Gardner takes a touch from outside the area and unleashed a fierce drive at goal but Steele saves well to his right.
Larsson's corner is headed towards goal but Hoyte does just enough to allow Steele to gratefully gather.
Sunderland come forward straight away and win a corner after Richardson's good run found Larsson who has his cross deflected behind.
GOAL - JUTKIEWICZ! Middlesbrough have equalised after a good move. Main does brilliantly to head the ball across towards Jutkiewicz, who after Turner failed to deal with his presence, found himself in space and finished strongly past Mignolet to the left corner. All square.
Sunderland have an attacking throw-in on the right but decide to play it back and work the ball forward.
Turner nicks the ball off Thomson to begin a Sunderland attack. He almost finishes it too as McLean's inch perfect cross from the left meets the head of the defender but it goes well over. Should have done better.
The tempo has lifted a bit at the Riverside but it is Middlesbrough who will need to find an extra something to change the outcome of this game.
Free-kick to Sunderland after Gardner and Arca clash. Turner swings the free-kick in from the right but it is headed away.
Campbell plays a short pass to Sessegnon to set up a shot, but Bennett beats him to it to gain possession. He is then fouled as Gardner goes in too strong on the left back.
Good control by Jutkiewicz in the centre outside Sunderland's box. He feeds the ball to Bennett on the right wing, but his cross is easily collected by Mignolet.
Middlesbrough are now 12/1 to turn this match on its head to win with SkyBet. Sunderland are 1/4 to seal victory and the draw is available at 7/2, which doesn't seem a bad bet. In terms of qualifying and meeting Arsenal in the fifth round, Sunderland are 1/9 with Middlesbrough at 5/1.
Martin McCourt writes: "Sitting in my office listening to game mild winter is about to end for one day expecting a little ice and snow tonight C'mon Boro warm me up with a win!"
The referee calls time on the first-half, which was really hotting up at the end there. Sunderland lead by a goal, but this tie is certainly not over.
Another great chance for Middlesbrough as the ball falls to Main, who from 25 yards, curls the ball low into the left corner but Mignolet makes a good save to tip it wide.
Almost an immediate response by Middlesbrough who power forward and are unlucky not to equalise as McMahon's low drive is cleared off the line by Bardsley.
GOAL - COLBACK! Lovely strike by Colback, who recieves the knock down from Campbell on the edge of the area, and fires the ball with his left foot into the top left corner. Fantastic strike to give Sunderland the lead.
Sunderland with the ball in Middlesbrough's half now but the hosts look organised and can't thread the ball through their defence. They eventually win a free-kick on the halfway line when Richardson is fouled by McMahon.
Probably the best chance of the game so far. Richardson centres it to Sessegnon on the edge of the area, who feeds it to Turner, but he fails to hit it cleanly. He does manage to win the corner off Bates though to keep the pressure on Middlesbrough.
Bennett goes unpunished for his lacklustre pass outside his own area as Middlesbrough break free on the counter through Arca. The home are side unable to create an opening however.
And that's exactly what Bardsley attempts to do from far out on the right. His shot is rather ambitious however, and travels wide.
Free-kick in a good position for McMahon to swing in. He finds Hines who pokes it in the direction of goal but Mignolet tips it over for a corner. The corner is cleared but Middlesbrough create another opportunity, with Jutkiewicz's attempt going wide of the target.
Sunderland with some good passing on the right but constant pressing from Middlesbrough forces them to lose it.
Main is then fouled himself by O'Shea. The free-kick is cleared by the captain towards Thomson, who has a strike from outside the area, but it is harmless.
Not such a threatening corner from Colback this time again on the right and Middlesbrough clear comfortably.
Larsson swings the corner in. It gets cleared only as far as O'Shea, whose strike deflects for another corner.
Thomson fouls Sessegnon in his own half to give Sunderland a free-kick. The following play sees Hoyte concede a corner.
Sunderland starting to build a bit of pressure and have another chance, this time through Richardson, who runs at Hoyte before shifting to his right and hitting it just wide of Steele's right post.
Good run from Campbell who lays the ball perfectly into the path of Larsson, who, from a tight angle on the right, hits the ball wide. Perhaps should have looked to pass it there.
Sunderland back in the mix again as McLean delivers a dangerous ball in from the right but Middlesbrough scramble it clear.
Well worked play on the right from Middlesbrough results in Main getting his shot away from the edge of the area but he doesn't hit it cleanly and fails to trouble Mignolet.
Middlesbrough collect possession again and Arca tries his luck from outside the area but Mignolet is equal to it.
The visitors fail to work the ball into the box and Middlesbrough go forward into Sunderland's half for the first time.
Richardson goes on a run from full-back and draws the foul to give Sunderland a free-kick in the hosts' half.
Larsson and Sessegnon exchange passes on the left but the Swede's cross into the box is misjudged and doesn't cause a threat.
Campbell crosses the ball in from the right but Steele comes off his line to claim the ball on the ground.
Williams fouls McLean to give Sunderland a free-kick in a promising position on the left, which Larsson is likely to swing in.
Sunderland had the ball in the box through Sessegnon and then Campbell but both failed to get a shot away.
Both sides have had early spells of possession as Middlesbrough lose the ball to Sunderland's defence.
Gazza in Buckinghamshire writes: "Hi Oliver. There's a choice of two results in tonight's game! It will be either 4 nil to the Sunderland or 5 nil to the Sunderland!! Haway the lads!"
Martin Elson writes: "Well, It's been a good week for cats in football hasn't it? Hopefully tonight will be no different!"
Sunderland boss Martin O'Neill hands striker Fraizer Campbell an FA Cup mission as he restores him to the starting line-up at Middlesbrough. The 24-year-old, who was rested for the 1-0 Barclays Premier League victory at Stoke, replaces David Meyler with the Black Cats attempting to book their place in the fifth round at the expense of hosts Middlesbrough. Boro boss Tony Mowbray pitches Julio Arca, who missed the first game through suspension, into battle with his former club, and gives a full debut to 19-year-old frontman Curtis Main as Faris Haroun and Marvin Emnes miss out through injury.
If you fancy putting some money on this one then our friends at SkyBet have Middlesbrough at 11/8 to qualify, with Sunderland available at 8/15. In terms of tonight's 90 minutes, Middlesbrough are 11/4 to win the match, with Sunderland evens and the draw at 12/5. I feel this is going to be another tight affair and 1-1 avalable at 11/2 may not be such a bad call...
Middlesbrough: Steele, Hines, Hoyte, Bates, Bennett, McMahon, Thomson, Rhys Williams, Arca, Main, Jutkiewicz. Subs: Ripley, McManus, Emnes, Ogbeche, Martin, Reach, Smallwood.
Sunderland: Mignolet, Bardsley, Turner, O'Shea, Richardson, Larsson, Colback, Gardner, McClean, Campbell, Sessegnon. Subs: Westwood, Wickham, Ji, Meyler, Elmohamady, Lynch, Reed.
Good evening and thanks for joining me for what should be an entertaining FA Cup fourth round replay at the Riverside between Middlesbrough and Sunderland. Direct your pre-match thought and predictions to firstname.lastname@example.org and I'll print as many as I can...