81' PSG almost equalise again! Dortmund unwisely let Mbappe's tame header bounce in the box. Neymar rushes onto it and fires whiskers wide of the left-hand post. Burki shouts at his team to wake up.
79' PSG are playing with greater urgency now as they sense they can score again. Neymar drifts inside and tries to find Kurzawa who's offside.
77' Assist Giovanni Reyna
77' GOAL! 2-1 DORTMUND! Erland is a freak of nature. The Norwegian receives the ball from Reyna just outside the box and smashes it left-footed into the top left corner. Navas wasn't getting anywhere near it.
75' GOAL! 1-1 PSG! PSG score with their first big chance of the game. Mbappe skips over Zagadou's challenge in the box and squares it to Neymar who can't miss from a few yards out.
75' Assist Kylian Mbappé Lottin
69' GOAL! 1-0 DORTMUND! Dortmund have a lead in this first leg! Hakimi finds Guerreiro in the box and his first-time shot is blocked. The ball pops up nicely for Haaland who stabs it home from close range!
68' Dortmund make the first substitution of the game. Hazard is replaced by Reyna.
67' Hakimi has a pop with his left foot from outside the box. It's too high though and floats out of play. Worth a try.
65' PSG get their first shot on target! Mbappe bursts into the box from Meunier's pass and blasts straight at Burki. Burki covers his near post well. Shortly after, Mbappe has an almost identical chance. Neymar tries to find the winger again but now Mbappe's offside.
59' Yellow card Neymar da Silva Santos Junior
58' Can fires a wonderful pinpoint pass forward to Haaland. Haaland leaves Silva on the deck with a sudden burst of pace. Marquinhos comes across to help his captain out. Dortmund get a corner. PSG clear.
56' Verratti tries the same direct ball for Neymar he's tried a few times this game and is just as unsuccessful. PSG are short of ideas.
54' PSG create nothing from the free-kick, passing backwards. Gueye takes revenge on Witsel by bringing him down on the flank. Gueye's booked.
53' The game gets a bit scrappy all of a sudden as Hummels trips Mbappe on the edge of Dortmund's box. Witsel is nearby and doesn't get a touch but puts his hands in the air anyway to avoid being sent off.
51' PSG look as sturdy as a craft chocolate teapot at the moment. Hazard goes on a run forward and sends Haaland into the box. Luckily for PSG Haaland hasn't got enough time to test Navas before he's closed down.
48' Dortmund are still looking bright. Guerreiro gets forward down the left and passes inside to Hazard. The Belgian's initial touch is poor and sends the ball out for a goal-kick.
46' Piszczek fires in a deep cross that's cleared by Marquinhos. PSG try to work the ball down their left to Mbappe. Dortmund's captain has it covered though.
45' HALF-TIME: BORUSSIA DORTMUND 0-0 PARIS SAINT-GERMAIN
45' Verratti lays the free-kick off to Neymar who blooters it high and wide from over 35 yards out. That was ambitious even by the Brazilian's high standards.
44' Yellow card Axel Witsel
42' Dortmund get a few more chances. First, Witsel blazes over from range when he receives a pass from Hazard. Next, Hazard wins his side a corner down their left as Marquinhos blocks his cross.
40' Marquinhos nicks possession off Guerreiro and finds Di Maria. Di Maria powers inside and is about to get a shot away when Zagadou uses his strength well to muscle the Argentinian off the ball.
39' Di Maria gets down the right thanks to a nice one-two with Verratti. Di Maria cuts the ball back to the outer edge of the box but Neymar can't pick anyone out with his chipped pass.
38' Neymar loses out to Hummels who rushes out to close him down. The centre-back tries to switch the play to the opposite side but his pass is overpowered and bounces out for a throw.
36' Yet again PSG are sloppy in possession and Dortmund break! This time Sancho hangs the ball up for Haaland at the far post. The Norwegian has a free header but it's uncharacteristically poor and goes out of play. Dortmund need to do better with these chances.
35' Gueye slips in the centre of the park and hands Can possession. Again, Dortmund get forward quickly and Haaland smashes an effort wide of the left-hand post. This is a recurring theme.
33' Verratti tries another one of his over-the-top balls for Neymar to chase. Neymar beats Piszczek to it but not Hakimi, who shepherds it out for a Burki goal-kick.
31' Dortmund look measured in possession. PSG, meanwhile, look vulnerable whenever they lose the ball. Neymar runs past Zagadou but is stopped by Witsel.
29' PSG have only had the one shot so far from Neymar's early free-kick. Dortmund are doing well at preventing them from creating many chances.
27' It's clear now that PSG are mirroring Dortmund's back three. PSG's latest attack breaks down and Dortmund counter. Can finds Haaland who lays off for Sancho. Sancho spanks a shot towards the bottom right corner and Navas dives across to push it away! Hakami looks to strike on the follow-up but PSG block it and scramble it clear.
25' Witsel picks the pocket of Neymar and Dortmund gallop forward again. PSG get the ball back quickly enough but they're not finding things easy at the moment.
24' Dortmund put together some lovely interplay that sends Sancho bursting into the left of PSG's box. The winger crosses looking for Haaland but it's too close to Navas who smothers the chance.
22' Sancho wins a free-kick in PSG's half as he's brought down by Gueye. Sancho sends the free-kick in but Hummels is offside. Favre applauds his team's effort.
20' Dortmund's pressing is causing PSG problems. The visitors struggle initially to get out of their half before bypassing the press. Neymar looks for Mbappe but it's intercepted. Verratti soon lofts the ball straight into Burki's arms.
19' It's been a feisty start to the game. Neymar is left on the deck again as Can scythes through the back of him. It's an obvious free-kick.
17' Dortmund are growing into the game as Sancho gets hacked down by Gueye. The home side are looking to get forward down their right at every opportunity. It seems like they've identified Kurzawa as a weak point with Neymar unlikely to help his team-mate out.
15' Witsel tangles with Neymar and gives PSG a free-kick. The fans boo and whistle their disapproval.
14' Can hands PSG their first corner of the game as he nips in to stop Mbappe receiving the ball. Haaland heads it away at the near post and Dortmund are off on the break! Sancho has plenty of options but skids a low shot wide from outside the box. There were better choices there.
12' Sancho slips in a promising position but Dortmund manage to keep possession. The passage of play ends as Guerreiro's wayward cross floats out. PSG goal-kick.
10' PSG get a free-kick in a central position as Guerreiro brings down Neymar. Neymar and Di Maria stand over it. Neymar soon steps up and fires a curling effort just wide of the right-hand post. Not far off.
8' The offside flag goes up against Mbappe as he chases after a pass down the left-hand channel. The World Cup winner is annoyed but it's the right decision.
7' PSG put some extended pressure on Dortmund who are all back in their own half. Mbappe can't latch onto Verratti's ball forward for him.