Last Updated: 13/02/13 9:38pm
A throughly entertaining game ends level at half time in the tie, although Dortmund have two priceless away goals for their efforts. All four goals were avoidable from a defensive point of view, but both teams showed glimpses of their attacking potency, and in three weeks time the second leg in Dortmund promises to be a cracker. Thanks for your company tonight and I'll see you all soon.
As Klopp issues frantic directions from the touchline, it appears as if time has run out for both teams now as the full time whistle looms.
Leitner looks to carry Dortmund forward in search of what would be a dramatic winner, but Srna makes a timely tackle to cut out the ball.
Hummels makes amends for his earlier error, with Schmelzer's expert corner met by a bullet header from the centre-back, with nobody marking him as Dortmund grab a crucial second away goal!
Piszczek's heavy touch at the byline allows Chagrynskiy into clear behind, but the same defender is there to concede once more as a second corner is awarded.
Dortmund are restricted to passing at a slower pace, with the hosts restricting space now in their bid to ensure this first leg lead remains intact.
Neither Reus nor Gotze can spark a second ball in of note after Schmelzer's delivery, and Shakhtar clear through Teixeira.
Gotze displays incredible energy to win a corner off Rat, which Schmelzer travels across the pitch to take.
Adriano looks for the corner off Schmelzer, but the defender wants to avoid that more than the striker wants it and the last touch comes off the Shakhtar man.
A truly shocking effort follows, as Fernandinho's swerving atrocity of a shot finds its way into the fans high up in the stadium.
Mkhitaryan skips past Hummels, but as a frustrated Blaszczykowski floors Fernandinho, the hosts win a free-kick 30 yards out.
Kehl looks to bulldoze his way through, but neither he nor Lewandowski can get a meaningful shot away as the visitors increase the urgency of their attacks.
Fernandinho aims a very cheeky elbow into Blaszczykowski, and had the referee seen that it could very well be the end of the Brazilian's game.
Glorious chance for Dortmund! Gotze finds Lewandowski less than 10 yards out and his volley is directed wide. Pyatov is furious with his defenders for the space the striker was granted.
A clumsy tackle from Lewandowski on Mkhitaryan results in a free-kick for the hosts, which Srna takes and sprays out wide to Rat as the hosts calmly pass the ball around.
Gotze takes a tumble trying to edge the ball forward, but Dortmund retain possession as the visitors look to make the most of a game where they have largely been the better side.
Dortmund's defending was woeful, but it was a remarkably precise finish from Costa, who outmuscles Schmelzer, with Hummels losing his bearings, as the ball is fired spectacularly past Weidenfeller.
The corner comes to nothing, but as Santana finds Reus at the far post, the forward struggles to control the pacey ball, loses out to Srna and concedes a free-kick.
Gotze's initial delivery is cleared, but the ball falls back to the forward, where a poor first touch allows Chygrynskiy into hack away to concede a corner.
Teixeira battles against Santana, but with a combined effort alongside Piszczek, the duo manage to end the winger's progress.
Costa neatly skips away from Schmelzer, with the forward making positive strides, finding Fernandinho coming in from the left whose drilled shot cannons off Hummels.
Costa's first act is to foul Schmelzer, conceding a free-kick which Dortmund play short after another nice spell from the visitors.
Blaszczykowski's delicate chip into Piszczek is wonderful, but the right-back can't fashion a pass to a team-mate and Rakitskiy steps in to intervene.
Srna isn't happy after a short corner is given as a goal-kick, but the linesman calls it correctly with replays the ball indeed came off the defender last.
Teixeira's nifty skill sees him earn a corner off Schmelzer, after both he and Hummels failed to steal the ball from the winger.
Incredible from referee Webb, who sees Hummels raise his hand in acknowledgement after fouling Fernandinho, with play on the call given.
Schmelzer and Hummels get a cross in between them after sumptuous build-up play, before Chygrynski gets in the way to deny Lewandowski latching on to the ball.
Rakitskiy's long ball up to Adriano is headed away by Hummels, with the game becoming now far less open than it was the first half.
Rakitskiy clears away for the hosts, before Lewandowski attempts a remarkable volley from a tricky position which sees Pyatov gather at the far post.
Again Shakhtar calmly knock the ball around their defence, with the tempo of the game halted, before a long ball up finds Adriano, whose cut back to Mkhitaryan sees Santana make a superb block.
Adriano is reprimanded by the referee as a tug back on Kehl prevents a quick Dortmund break after a squandered attack from the hosts.
Patient, possession play from Shakhtar sees them maintain control of the ball, albeit their progress for the time being is fairly minimal.
Taison stays on his feet after a challenge from Schmelzer, but Shakhtar fail to build on the winger's progress and Dortmund regain possession.
A sensational move from Dortmund sees Piszczek and Reus involved, before Gotze's drive clips Rakitskiy and the hosts breathe a sigh of relief as the ball is cleared.
A wonderful half of football ends level after Srna's sensational free-kick is met by Lewandowski's cool finish. Send your second half thoughs to email@example.com.
What a chance for Shakhtar. Taison's speculative chip is woefully parried by Weidenfeller, before Teixeira's attempts to direct the ball into the net result in Schmelzer bailing his keeper out of trouble.
Reus looks to muscle his way through Srna, with the defender doing enough to poke the ball away, before Rakitskiy makes the challenge to deny Gotze letting a shot loose.
It's a classy finish from the striker, but Shakhtar will be desperately upset as two defenders collide with each other, allowing Gotze's ball to find Lewandowski, who calmly slots the ball home. 1-1 and game on again!
Pisczczek and Reus can't find a path forward down the right, but Blaszczykowski takes charge of the ball, with his delivery into Lewandowski claimed confidently by Pyatov.
Schmeltzer's delivery is met by the head of Rakitskiy, who takes the head of Lewandowski to his own skull in the process and looks a little worse for wear, despite doing very well for his team.
Taison is eventually dispossessed by Santana, and as Dortmund look to break with Gotze, Chygrynskiy's careless tackle sees a free-kick awarded.
Another decent strike from Blaszczykowski earns his manager's applause, but it's straight down the throat of Pyatov and makes for a fairly comfortable save.
Fernandinho looks to set Adriano away, after doing well to take a Lewandowski tackle in the process, but his delivery carries too much weight and ends up with Weidenfeller.
2-0 was very close as Taison takes on Piszczek, drifting the ball in from the left with a crucial touch from Hummels taking it out of Fernandinho's path.
The wall jumps, and arguably Weidenfeller should have been a little more alert, but there's no denying the quality of Srna's free-kick, which nestles in the top corner to give Shakhtar the lead!
Fernandinho's close control sees Kehl lured into making the tackle, conceding a foul, before Adriano draws a kick out from Santana and Shakhtar have a free-kick 25 yards out.
Shakhtar carve out arguably their best chance, with Fernandinho's powerful half volley someway over the bar in the end, but the hosts have picked up after a dominat start from Dortmund.
Another poor delivery from Fernandinho frustrates his team-mates, and his manager on the sidelines, as a touch off Adriano sees the ball roll out for a goal-kick.
Lovely skill again from Taison sees him elude two defenders and set up Hubschman, whose drive takes a deflection and sees another corner awarded.
Taison slips away from Piszczek, and the Brazilian earns his side a free-kick as the defender pulls him back and prevents the counter attack from taking place.
Fernandinho's ball in is poor, but the hosts retain their attacking momentum as Lewandowski tracks back to foul Teixeira.
Rat sprays an outstanding ball out to Srna, with solid defending from Hummels ensuring a corner for the home side.
Chygrynskiy leads Shakhtar forward, after many minutes spent being pegged back, before Fernandinho loses out to Reus and Dortmund win a throw-in.
Dortmund are extremely impressive in their ventures forward, but as Blaszczykowski looks for Lewandowski, Rat steps in to prevent the ball reaching its intended target.
Reus makes tremendous progress as he cuts across the park, before unleashing a fierce shot that Pyatov fumbles initally, before eventually gathering.
Blaszczykowski takes aim after being fed in by Gotze, with Rakitskiy hurling his body into the way, before a collision with the defender moments later sees his taken off for treatment.
Huge chance for Dortmund, with Hummels meeting Reus' delivery with a brilliant header that bounces off the crossbar as Shakhtar clear. Biggest moment of the game so far.
Hummels goes long for Lewandowski, who keeps the ball in by delivering to the far post, where Srna is aggrieved to end up conceding a corner.
Adriano looks to pounce after Santana misses the ball after a tricky bounce, but the defender makes amends with a precise sliding tackle on the byline.
Lovely movement from Lewandowski creates a chance for Dortmund, but Gotze's run isn't found by the striker and Chygrynskiy is able to intercept.
Reus steps up to take the free-kick, but his curling effort from 30 yards lands comfortably in the arms of Pyatov.
Lewandowski doesn't get the penalty he wants against Ratitskiy, but moments later the defender is indeed penalised for a cynical challenge on Reus.
Gotze loses out for Fernandinho, with Taison finding his team-mate with a return pass before the offside flag again denies Shakhtar.
In turn, a promisining chance presents itself for the hosts, as Dortmund fail to deal with a throw-in, before Taison is denied by the linesman after Adriano's lay-off.
Dortmund are coming to life now, with Blaszczykowski played in by Lewandowski, wasting a fairly good opportunity by firing wide across goal.
Gotze and Reus combine, with the latter heading to the byline where a goal-kick is given, despite the Dortmund player claiming Srna got the last touch.
Lewandowski looks to control Gotze's ball, but is pulled down by Husbchman, which results in a free-kick. From the delivery, Lewandowski attempts a spectacular overhead kick but the ball bounces wide.
Hummels' loose pass is cut out by Teixeira, and as the midfielder battles forward on the counter attack, a foul from Bender sees his progress ended.
Rat's long ball to Mkhitaryan is cut out by Hummels, with the home side pressing earlier on before the ball runs out of play.
Dean Wilson writes: "Been looking forward to this match! Should be a cracker and will be interesting to see how Shakhtar cope without Willian in Europe. Can see if being a draw with 1 goal a piece. I would like to see Costa come on and have a decent run out."
Borussia Dortmund: Weidenfeller, Piszczek, Felipe Santana, Hummels, Schmelzer, Kehl, Bender, Blaszczykowski, Gotze, Reus, Lewandowski. Subs: Langerak, Subotic, Leitner, Sahin, Schieber, Bittencourt, Halstenberg.
Shakhtar Donetsk: Pyatov, Srna, Rakitskiy, Chygrynskiy, Rat, Fernandinho, Hubschman, Alex Teixeira, Mkhitaryan, Taison, Luiz Adriano. Subs: Kanibolotskiy, Stepanenko, Eduardo, Shevchuk, Devic, Douglas Costa, Ischenko.
Good evening everyone and welcome to live coverage of the Champions League last-16 first leg between Shakhtar Donetsk and Borussia Dortmund. My name is Jack Woodfield and I'll be here to guide you through tonight's match, where I can be reached at firstname.lastname@example.org or @JWoodfield365