Bayern were already assured of their place in the knockouts after winning all four of their previous group games, while Inter Milan’s 4-0 victory over Viktoria Plzen put qualification beyond Barcelona prior to kick-off. The record champions could have been forgiven for going easy in the context, but instead delivered another group-stage masterclass. Mane scored inside 10 minutes after latching onto Serge Gnabry’s brilliant through-ball and chipping an exquisite finish over Marc-Andre ter Stegen. Eric Maxim Choupo-Moting then shot wide, before making his next effort count with a clinical strike through the legs of the goalkeeper. Mane was denied his second by ter Stegen, who did well to block Jamal Musiala on the rebound.
Former Bayern striker Robert Lewandowski thought he’d won a penalty on the stroke of half-time for a foul against Matthijs De Ligt, but the decision was overturned by the VAR. Technology intervened at the other end soon after the restart, with Gnabry having strayed offside before curling a superb strike beyond ter Stegen. Manuel Neuer understudy Sven Ulreich blocked an injury-time effort from substitute Ansu Fati as Barca tried in vain to restore a modicum of pride, before Benjamin Pavard turned in Gnabry's volley to add salt to the wound. Xavi’s side will play Europa League football in the new year, while Bayern - who conclude their hitherto flawless group campaign at home to Inter next week - will be the team no one wants to draw in the Champions League round of 16.
Match stats
Mane has 10 goals and an assist across his first 19 appearances for Bayern.
Choupo-Moting has scored five goals in his last four competitive games.
Bayern are unbeaten in their last 33 Champions League group games (W30, D3) - an ongoing competition record.
The six-time European champions have won each of their last 12 group games – including all 11 under Nagelsmann - another tournament record.
Bayern's last six Champions League games against Barcelona have ended in 3-2 (h), 8-2 (n), 3-0 (a), 3-0 (h), 2-0 (h) and 3-0 (a) wins.
As well as Lewandowski, Barca's Ousmane Dembele (Borussia Dortmund, 50 appearances), Ter Stegen (Gladbach, 127 apps) and Andreas Christensen (Gladbach, 82 apps) are former Bundesliga players.
Champions League Matchday 5 Matchday 5 Camp Nou, Barcelona
90'
+ 5
FULL TIME
Bayern Munich brush Barcelona aside at the Camp Nou, with goals from Mane, Choupo-Moting and Pavard sending Julian Nagelsmann's side through to the Round of 16 as group winners.
90'
+ 5
PAVARD THREE AND EASY
A shot to the far post is blocked and loops up in the air, all the way to Pavard, who rams in for 3-0. Good night.
There will be four minutes to add to the 90 in Barcelona.
BRAVO BAYERN
Five minutes to go and it's time to give Bayern huge credit for a job very well done here in Barcelona. The Bundesliga champions have never really been in danger and even look to be playing in around third gear. They will advance as group winners and be fearful opponents for whomever they face in the last 16.
Gnabry and Mane almost combine to tee up a third for the visitors in a two on two situation but the latter's final pas is overhit and the move breaks down.
70'
ANSU FATI ENERGY
Ansu Fati tricks his way through on the left before striking into the side-netting. The home fans enjoyed that moment of skill from the young Barça sub.
68'
MUSIALA MAKES WAY
A quiet game by Musiala's standards. The 19-year-old - who has been replaced by Ryan Gravenberch - had a decent chance to score earlier but he'll be more than happy with his team's overall performance as he watches the rest of this game from the bench.
Kimmich has a good, long talk to himself after smashing a harmless effort well wide of the target.
63'
MÜLLER WELCOME
Thomas Müller is clearly not well liked around these parts. The Bayern forward - who has enjoyed some big wins against Barcelona in the past - comes on to shrill whistles echoing around the Camp Nou.
That's the big man's first tonight. It's slightly awkward, close in and he's digging the ball out from his body. His effort is blocked.
54'
GNABRY DENIED
Gnabry strays inches offside before curling a shot past Ter Stegen. Bayern celebrate, but not for long. Word comes down from above that this goal won't count.
51'
HERE COME BARÇA
Scratch what has just been written. Barcelona break through Dembele. The ball eventually reaches Lewandowski who is denied by a superb Mazraoui challenge. Busquets wafts a shot over the bar moments later.
49'
BAYERN'S GAME
The atmosphere - understandably - has gone flat and this now looks like it might turn into a Bayern waltz. The team from Bavaria, in all white kits tonight, are tricking and toying their way around the Barça box.
46'
GAME (BACK) ON
So, we start the second half immediately after a Bayern swap. Goretzka - who was on a booking and maybe not suitably restrained towards the end of the first half - is replaced by Marcel Sabitzer.
Bayern are cruising through to the Round of 16 as group winners as things stand. Goals from Mane and Choupo-Moting and a 2-0 scoreline sum up the visitors' comfortable position at the Camp Nou.
45'
BAYERN CHANCES
In the build up to that VAR/no penalty incident, Bayern missed a couple of sitters for 3-0. Mane, clean through, tried to clip a finish over Ter Stegen but the keeper got something on the ball. Musiala's follow up was blocked by Bellerin. The Bayern forward then had another go but Ter Stegen blocked.
44'
VAR CHECK - NO PEN
The ref has been called to take a look at that De Ligt challenge on Lewandowski. And ... it's no penalty in the end. The ex Bayern man lunged across De Ligt first before going down.
44'
PENALTY BARÇA
De Ligt on Lewandowski.
41'
BUSQUETS YELLOW
Musiala bursts away on the left, until Busquets reefs the Bayern attacker back by his neck/shoulder. Obvious yellow for the Barça midfielder.
Goretzka and Upamecano have both had a niggle at Dembele in the past few minutes and both would want to be careful here with yellow cards to each of their names.
36'
MAN IN FORM
Choupo-Moting, eh? That's five goals in his last four games (plus an assist). He's on six goals in total for the season in all competitions.
35'
BAYERN BOOKING
Upamecano is the third Bayern player into the book. Dembele then lashes a wayward cross-shot off target as home coach Xavi looks on in concern.
And there, indeed, is the second. Bayern flow forward with Gnabry again providing the key assist along the floor for Choupo-Moting. Bayern's in-form forward pushes in slightly from the right, has a look up and drills one through the legs of Ter Stegen and into the corner.
Bayern are solid value for their lead here. The Bundesliga side have yet to face a major threat having gone a goal ahead through Mane after ten minutes. You wouldn't bet against the visitors hitting the target again here.
A super run from former Dortmund man Dembele sees the France international race in from the right, go past a couple of Bayern players but then send a pass into an empty space.
24'
GORETZKA SEES YELLOW
Goretzka loses the yellow card lottery with the ref finally cracking down on Bayern's hard-man approach in these past few minutes. The Bayern player goes in on Busquets and the official says enough is enough.
Barcelona have been looking for a way through since falling behind but to no great effect. Bayern are looking comfortable at the back.
12'
MANE IN NUMBERS
That's goal number ten of the season for Mane, who has three in this competition, five in the Bundesliga, one in the DFB Cup and one in the Supercup.
10'
MAGNIFICENT MANE
Top, top goal from Bayern. Gnabry knocks a superb ball through for Mane to chase. The attacker gets ahead of Bellerin and holds the defender off as he pushes the ball wide of Ter Stegen and applies the finish.
Both teams passing it around without any great incision so far. The home crowd are creating a cracking atmosphere, despite their team's chances of advancing having evaporated before kick off.
3'
MANE MENACING
Mane robs Kounde of the ball and the Senegalese looks like he might be in. The ball just gets away from the Bayern attacker, however, and Barça survive.
1'
KICK OFF !
Game on at the Camp Nou in what is one of the biggest fixtures on the footballing calendar this season.
BAYERN'S CHALLENGE
Inter overcame Plzen 4-0 in the end to eliminate Barcelona from the Champions League and send the Catalan giants into the Europa League. Bayern top the group on 12 points after four games and then come Inter on ten points after five played. Win tonight, and the visitors guarantee top spot with a game to spare.
ALL TO PLAY FOR
With Inter currently cruising against Plzen in the group's other game, Barcelona are facing elimination from the Champions League before a ball is kicked at the Camp Nou. That won't take away from Bayern's task in Spain, however. Julian Nagelsmann will be keen to see his team top the section ahead of the Italians, which the Bavarians would do with a draw, as things stand.
BAYERN TEAM NEWS
Just the one change in the Bayern team to that which began the 2-0 win away to Hoffenheim last Saturday with Noussair Mazraoui replacing the benched Benjamin Pavard at full back.
Barça show three changes to the side that started the 4-0 weekend win against Athletic Bilbao. Bellerin, Alonso and Kessie make it into tonight's XI while the injured Sergi Roberto misses out. Gavi, who went into this game carrying a slight knock, drops to the bench, as does Eric Garcia.
Ter Stegen - Bellerin, Kounde, Alonso, Balde - De Jong, Busquets (c), Pedri - Dembele, Kessie - Lewandowski
WELCOME ALONG !
It's a huge night of UEFA Champions League football and have we got a game for you. It's Bayern Munich at Barcelona and it's all here. Stay where you are for all of the latest updates from the Camp Nou where an old Bayern friend is waiting to say hello to his former teammates.
