That's it from me tonight, I hope you've enjoyed following the action. Until the next time, goodbye!
Nagelsmann will be disappointed his side haven't killed the game off, but an away goal and a clean sheet isn't a bad return for the club's first-ever Champions League knockout tie. Spurs know as well as anyone that a first-leg deficit is never unassailable in the Champions League, but they've got a battle on their hands in Germany.
Leipzig looked like running away with the game but ended up clinging onto the result, as Werner converted a penalty won by Laimer after a foul by Davies. Angelino hit the post in the first half and Schick should have made it two in the second but Spurs really improved in the last 20 minutes, with substitute Lamela playing a leading role. Lo Celso saw a free-kick tipped onto the post and Moura headed a good chance over the bar late on, but they lacked a genuine cutting edge and couldn't find a way through.
90' + 6' FULL-TIME: TOTTENHAM 0-1 RB LEIPZIG
90' + 6' Lo Celso loops a ball over the top for Bergwijn, but Ampadu tackles him well at the edge of the area. That should be that.
E. Lamela
Yellow Card
90' + 4' Lamela sees a late yellow for a foul in midfield.
90' + 4' Spurs have had more shots in the 25 minutes since Lamela came on than in the 65 beforehand - but Alli, who went off, has still covered more ground than any other player in white.
90' + 2' Winks shoots from range, but it's a simple save into his chest for Gulacsi.
90' + 1' We're into five minutes of stoppage time.
90' Davies loops in a cross from the left corner of the area, and Moura gets in between two defenders to meet it six yards out. He perhaps doesn't expect the ball to make it through to him, as he heads well over the crossbar. That was a really good chance.
89' Sabitzer puts a pass out of play well inside his own half. Leipzig are showing signs of feeling the pressure as the game enters its closing stages.
87' Forsberg fires in a low corner from the left, but Sanchez clears it easily. All of the Leipzig players were making runs from the edge of the area, but the execution on the set-piece wasn't right.
86' Lamela takes charge from the free-kick, and Gulacsi gets across to tip his effort towards the bottom-right corner wide. It was probably going wide anyway, but Leipzig survive the resulting corner regardless.
85' Lo Celso will have another chance from a free-kick, with Moura sandwiched between Haidara and Halstenberg. It's almost perfectly central, about 30 yards from goal.
84' Lo Celso has another crack from a free-kick, but fires this one straight into the wall from a fair distance out.
E. Forsberg
K. Laimer
83' Laimer, who won the Leipzig penalty, has gone off with a shoulder injury. Forsberg comes on to replace him.
82' Laimer is now down receiving some treatment. He appears to be holding his left shoulder, having run into the back of Lamela a moment ago.
81' Into the final 10 minutes now. Spurs are having their best spell of the match, but Lo Celso's free-kick off the post is the only time they've really gone close to scoring.
80' Halstenberg cuts aross Aurier's run forward and brushes him to the floor, but no foul is given.
78' Spurs are having their best spell of the match now. Bergwijn looks to slide a pass in behind for Moura down the right channel, but he's held off well by Klostermann and it dribbles out for a goal kick.
Y. Poulsen
P. Schick
77' Nagelsmann makes another switch. Schick heads off, replaced in attack by Denmark international Poulsen.
75' Two decisions go against Leipzig in quick succession and the away fans are furious. Lamela was involved in both - the home crowd are getting right behind the substitute.
A. Haidara
C. Nkunku
74' Leipzig make their first change of the night, as Haidara comes on in place of Nkunku.
73' Lo Celso off the post! The Argentine steps up to take the free-kick left-footed, bending a superb effort towards the far corner where Gulacsi just manages to touch it onto the woodwork.
C. Nkunku
Yellow Card
72' Nkunku is booked for pulling Lo Celso's shirt. The free-kick is in a very dangerous position, to the right of centre and about 25 yards out.
70' This game is pretty finely poised now, with Spurs occasionally looking like taking control of it. Another goal for Leipzig, and you'd think it might be game over already with the return leg in Germany still to come.
68' Aurier threads a cross through Angelino's legs, but Ampadu reads the play well to get it clear.
67' Sabitzer tries his luck from range, winning a corner on the right as his powerfully-struck effort deflects behind.
65' Neither Fernandes nor Alli have played badly individually, though the latter will be disappointed not to have made more of an impact. He throws down his boot as he takes his seat on the bench, but the system didn't help him tonight.
T. Ndombélé
Gedson Fernandes
64' It's a double switch for Spurs. Ndombele comes on for Fernandes.
E. Lamela
D. Alli
64' Mourinho makes his first change. A bemused-looking Alli is the man taken off, with Lamela coming on.
63' Werner now has seven career Champions League goals to his name, and every one has come away from home.
62' Crucial save from Lloris! Angelino crosses low from the left, Werner dummies it through to Schick and he hits a firm effort just too close to the keeper at the back post. He should have scored.
61' Bergwijn tees up Lo Celso for a left-footed shot just outside the area. He strikes it well, but it's straight down the keeper's throat and Gulacsi makes a simple low save.
60' Lo Celso bursts down the right and shapes in a cross, but it's between Alli and Moura and Ampadu gets it clear.
59' That was Werner's first goal in seven games in all competitions, a run that stretched back to New Year's Day. His fourth in the Champions League this season - one more than his final tally of three last time around.
T. Werner
Penalty Goal
58' GOAL! Leipzig lead 1-0, Werner from the spot! He steps up confidently and drills a right-footed effort hard into the bottom-left corner. Lloris guesses right but can't get a touch to it. Super penalty - and an away goal.
B. Davies
Yellow Card
56' Davies is booked for his foul on Laimer in the area, with the Leipzig man receiving some treatment from the medical staff.
56' Penalty for Leipzig! No doubt whatsoever. A ball comes in from the left, Laimer looks to latch onto it and Davies wipes him out. Stonewall.
54' Spurs get the corner away but struggle to get the ball out of their own half on the counter. Leipzig immediately close down Moura and force a mistake.
53' Alderweireld stretches well to head a Werner cross behind for a corner. He probably didn't need to make the clearance, but didn't get a shout and decided to make sure.
52' Nkunku is the man to step up for the free-kick, about 20 yards out on the left. He looks to whip it up and around the wall, but doesn't catch it well and it flies well over the crossbar.
51' Spurs lose the ball and Aurier is forced into a foul on Schick, with the free-kick in a dangerous position over to the left. Nkunku and Sabitzer are standing over it.
50' Halstenberg crosses towards Mukiele, but Davies gets across to head clear. Klostermann then crosses from the right, and Fernandes can watch it out for a throw-in.
48' Aurier picks up the ball in some space on the halfway line and takes it forward before drilling in a cross towards Moura, darting towards the near side of the six-yard box. He either gets a slight touch or it goes all the way through, but Gulacsi has to react well to keep it from sneaking all the way across goal and in.
46' The game is almost immediately stopped as a big clump of streamers from the Leipzig fans is cleared from the pitch. They hold up a banner reading 'stand up for a fair price cap', and get a little round of applause from some of the home crowd.
1' We're back underway for the second half, with Spurs getting the action going again.
You have to think Spurs will need to change something if they're going to get anything from this game, though preventing an away goal would be a real bonus. They've had less than 35% possession so far in front of their own fans.
Well, they might not know how, but Spurs have survived the first half. The away side have been totally dominant, right from the off. Angelino flashed a shot off the post inside two minutes, with he and Mukiele finding all sorts of space down the flanks. Werner poked a shot at Lloris from close range in their best other chance, one of the 13 shots the visitors have had. Spurs have had a couple of moments, with Fernandes delivering two dangerous crosses in towards Alli, but it's Leipzig who are well on top.
45' + 2' HALF-TIME: TOTTENHAM 0-0 RB LEIPZIG
45' + 1' The corner is fired in deep towards the far post, but Halstenberg makes a simple headed clearance under little pressure.
45' Winks funds Aurier in some space on the right. He scoops a ball from deep towards Alli at the right corner of the six-yard box, and he does well to control the ball, hold it up and eventually win a corner from Halstenberg. One minute added on.
44' Alli picks up the ball on the halfway line and looks to run, but three players immediately swarm around him and rob him of possession. Schick then tries to carry it up the other way, and is fouled by Davies.
43' A Leipzig corner from the left is cleared away by Fernandes, who has impressed so far. Leipzig will be annoyed with themselves if this first-half performance doesn't result in a goal.
41' Spurs have been finding a bit more space on the counter in the last 15 minutes, but they haven't looked like the home side at any point.
39' Fernandes whips another good cross in from the right, and Alli just gets himself into a tangle going for the header five yards out. He over-runs it and can't contort his body backwards to get a touch, but that was probably the best chance Spurs have had so far.
38' Mukiele is down in some pain after fouling Davies. It looks as though he overstretched himself as he tried to get across to the Spurs left-back who, for his part, goes straight over to him to make sure he's alright. The physios come on, and he hobbles off. He might not come back on.
36' Good chance for Werner! Laimer slips him in at the left side of the area, in all sorts of space. He comes inside onto his right foot and toe-pokes a shot at goal, but Lloris makes a firm save.
34' Lo Celso feeds Aurier on the overlap on the right. He drills in a low cross, but it's straight into the arms of Gulacsi. Moura was making a run into a central position, but it would have taken some ball to pick him out through the crowd.
T. Werner
Yellow Card
33' Winks knocks Laimer to the ground and scarpers off with the ball. Werner then pushes him to the ground and is booked, much to his and his teammates' annoyance.
32' Lo Celso's corner just evades the leap of Moura, but Fernandes latches onto it at the far side of the area. He looks to blast a first-time effort at goal, but gets under it and it flies well over.
31' Fernandes and Sanchez combine to clear the corner after Nkunku had flicked it on. Spurs break with Lo Celso, and Bergwijn eventually wins a corner off Laimer.
30' Angelino gets the ball in space on the left, but with no bodies to aim for in the area, he hits his cross straight off Aurier and wins the corner.
29' Spurs have still only had one shot in the game so far - Bergwijn's curling effort saved by Gulacsi, 20 minutes ago. Leipzig have had 11 shots. Away from home. In their first-ever Champions League knockout match. Against last season's finalists.
28' Fernandes flicks in a cross from the right with Alli making a good run to the edge of the six-yard box, but Klostermann just gets his head to it first and the danger is cleared.
27' Angelino slides in a low cross from the left which is just out of Werner's reach, but he was well offside anyway.
26' Alli pulls off a sharp turn halfway inside the Leipzig half, and wins a foul from Klostermann. Within seconds of the restart, Spurs find themselves at risk of a counter and Moura commits a foul at the edge of the centre circle to prevent it.
24' Mukiele swings in a deep cross from the right which Angelino picks up inside the area. He chests it down and connects well with a left-footed half-volley, but Fernandes gets across to block the shot and get it clear.
22' 22 minutes in, and the away side have had 70 per cent of the possession so far. But as long as it's goalless, a Mourinho side will always feel they have a chance.
20' Lloris makes a save from Angelino and launches the ball out of his hands towards Moura, who profits from a defensive slip and almost finds himself through on goal. The bounce of the ball just keeps it out of this reach, and he fouls Klostermann at the edge of the area.
18' Werner streams past Aurier down the left and chips a cross in towards Schick, but his close-range header is blocked on the line of the six-yard box.
17' The corner is met by Schick, the big forward looking to flick a header towards the back post from eight yards out. It bounces just wide of the post.
16' Werner holds the ball up at the left corner of the area, waiting for the run of Sabitzer before threading a throughball in behind. Sanchez puts it behind for a corner.
15' Werner and Schick almost have a two-on-two against Sanchez and Alderweireld, but Werner doesn't quite seize the opportunity and the ball ends up going backwards.
13' Fernandes shows some neat footwork in midfield to skip away from two men, but eventually loses it to Werner and fouls the forward as he attempts to get back around him.
M. Sabitzer
Yellow Card
12' Sabitzer is fouled for a late tackle on Aurier.
12' Mukiele feeds Nkunku in a central position, with Angelino available on the overlap. He goes down under a challenge just outside the area, but there's no foul given.
11' The Tottenham Hotspur Stadium has seen more goals than any other venue in this season’s Champions League with 20. 11 for Spurs, nine against - including seven for Bayern Munich.
G. Lo Celso
Yellow Card
10' Aurier gives the ball away to Sabitzer near the halfway line, and Lo Celso is booked for hacking him down to prevent the counter.
9' Spurs have settled somewhat after a very ropey start. Leipzig have shown they mean business from the first whistle.
7' Bergwijn looks to curl a right-footed shot towards the far post from the left, and pulls a good save from Gulacsi. The ball almost breaks for Alli, but he was offside.
5' The ball sits up for Werner at the edge of the area, but there's a big crowd of players in the box and his shot is blocked.
3' And another chance for Leipzig! Just moments after Angelino hits the post, Werner picks up the ball inside the six-yard box and is denied at point-blank range by Lloris - though the flag does then go up for offside.
2' Off the post! Leipzig are all over Spurs! Timo Werner sees a shot blocked at close range but Angelino follows it in from the left and slams a shot against the post.
1' The visitors get a half-chance inside the first 30 seconds, with Schick flashing a shot wide to the right from the edge of the area.
1' We're off! Leipzig get the ball rolling.
The teams are on their way out onto the pitch, and we’re just moments away from kickoff.
Mourinho last made it past the round of 16 of the Champions League six years ago, leading Chelsea to the semi-finals in 2013/14. It’s also nearly 10 years since he last reached the final, with Inter Milan in 2010.
January signings Fernandes and Bergwijn both start for Spurs, with Alli presumably starting just behind Moura in attack. Klostermann and Halstenberg partner each other in a makeshift central defensive partnership, while there’s also a start for Welsh starlet Ampadu.
SUBS: Amadou Hairara, Yussuf Poulsen, Emil Forsberg, Ademola Lookman, Hannes Wolf, Dani Olmo, Yvon Mvogo.
RB LEIPZIG (4-2-2-2): Peter Gulasci, Angelino, Lukas Klostermann, Marcel Halstenberg, Nordi Mukiele; Ethan Ampadu, Konrad Laimer; Christopher Nkunku, Marcel Sabitzer; Timo Werner, Patrik Schick.
SUBS: Jan Vertonghen, Erik Lamela, Eric Dier, Paulo Gazzaniga, Tanguy Ndombele, Oliver Skipp, Japhet Tanganga.
TOTTENHAM (4-2-3-1): Hugo Lloris; Ben Davies, Davinson Sanchez, Toby Alderweireld, Serge Aurier; Gedson Fernandes, Harry Winks; Steven Bergwijn, Dele Alli, Giovani Lo Celso; Lucas Moura.
Jose Mourinho’s side might find themselves up against it on home soil tonight, with star forwards Harry Kane and Heung-min Son both out and Julian Nagelsmann’s Leipzig just a point off the top in Germany.
Hello and welcome to our live coverage of this Champions League last 16 first leg, with Tottenham hosting RB Leipzig.
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