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Key Events

78'
Leandro Salino
O. Elabdellaoui
72'
Javi Martínez
Douglas Costa
69'
K. Coman
Goal
67'
Hernâni
F. Pardo
67'
K. Fortounis
P. Kasami
63'
L. Milivojević
Yellow Card
56'
M. Benatia
R. Lewandowski
52'
H. Badstuber
Red Card
42'
J. Boateng
Yellow Card
33'
J. Kimmich
A. Robben
20'
A. Robben
Assist
20'
T. Müller
Goal
16'
K. Coman
Assist
16'
R. Lewandowski
Goal
8'
Douglas Costa
Goal
3
1
3
1

Stats

Possession
% %
7
6
Shots Off Target
Shots On Target 8 0
Total Passes 707 322

Commentary

FULL TIME! Bayern go top of the group, with a 4-0 victory over Olympiakos. The Greek outfit stay in second for now, with Die Roten in pole position to qualify for the knock-out stages! Goals from Douglas Costa, Lewandowski, Muller and Coman wrap up the result at the Allianz Arena, I've been Simon Harrison and I hope to see you again next time.
90' + 2' Muller sees yet another chance go begging, with Roberto and Masuaku combining well to deny the Bayern man! From Guardiola's reaction, you would think that the scoreline was still 0-0!
90' Fortounis tries to slide a pass through to Ideye, who is lurking inside the penalty area, but the substitute's pass is cut out by Benatia. There are two minutes of stoppage time in Bavaria.
88' Wide from Muller! The charismatic forward bends his run, before gallopping across the face of the penalty area! He is picked out by a neat through ball, but the linesman's flag denies the Germany international due to an offside decision.
86' Muller goes close, with the Germany international released in behind! Roberto stands tall to deny the Bayern forward, with the Greek club extremely close to racking up a five-goal deficit. Less than five minutes are on the clock at the Allianz Arena.
84' Fortounis tries his luck from the periphery of the penalty box, but the substitute can't hit the target! Neuer isn't in a hurry to take the goal kick, either. Olympiakos are running out of time to find any kind of positives from this result.
82' Bayern have a lot of red shirts behind the ball, with their home supporters making plenty of noise in order to coax them over the line. This result will see Die Roten go top of the group.
80' We're into the final 10 minutes in Bavaria, with Bayern still causing all of the problems. Guardiola remains very animated on the touchline, with the Spaniard not willing to see anything but perfection in the Allianz here tonight.
Leandro Salino
O. Elabdellaoui
Olympiakos CFP
78' The away outfit have got no time to lose, with Leandro Salino coming into the game in place of his Norwegian teammate. A right-back for a more offensively minded player.
78' Bayern are settling into a back five when they aren't in possession, with Martinez sitting extremely deep. Lahm and Rafinha are being used as wing-backs, with Muller and Coman sitting ahead of them. Guardiola's set-up should be tough for Olympiakos to break down.
76' Bayern are trying to hold onto possession and slow this game down, with the three points already secured. The hosts aren't afraid to go back to Neuer, with the goalkeeper comfortable enough in possession to take risks.
74' Only a quarter of an hour remains in Bavaria, with Bayern not looking likely to surrender their lead now. Even with 10 men, Guardiola's outfit have pushed on for a 4-0 lead, with Die Roten not showing any mercy at all.
Javi Martínez
Douglas Costa
FC Bayern München
72' Despite Coman being caught by Roberto while converting Bayern's fourth goal, the Frenchman comes back into the action. Douglas Costa is substituted, with Javi Martinez coming into the game to bolster the midfield.
K. Coman
Goal
FC Bayern München
69' Another goal for Bayern! Coman is on hand to nod home a close-range finish, with the Frenchman putting his head on the line in order to convert the opportunity! A long pass is lifted into the penalty area, before Muller flicks on a dangerous header. The ex-Juventus forward beats Roberto to the loose ball!
Hernâni
F. Pardo
Olympiakos CFP
67' Hernani is also thrown into the action, with Pardo signing off after having only one meaningful offensive contribution.
K. Fortounis
P. Kasami
Olympiakos CFP
67' Kasami takes his leave, after a quiet evening, with Fortounis hoping to offer a little bit more cutting edge in front of goal during the last 20 minutes.
65' Bayern break down the left flank at pace, but an eventual back-post cross is nodded back to Roberto by Masuaku. After weathering a little storm, Die Roten are back in control. Without Lewandowski to spearhead the attack, Muller has become a little lost.
L. Milivojević
Yellow Card
Olympiakos CFP
63' After picking up a caution, Milivojevic might struggle to make any impact in the midfield third, in terms of trying to break up play.
63' Neuer has been much more involved in this contest since Badstuber's red card, with the ex-Schalke shot-stopper having to interact with his back four much more regularly. Olympiakos are running out of time, in terms of finding the three goals required to tie this game up.
61' Ideye lashes wildly over the crossbar, after good work down the left-hand side from Seba. Moments later, Elabdellaoui is found overlapping down the right flank, but Neuer comes off his line quickly to deny the Norwegian. Less than half an hour remains in Bavaria. 
59' Douglas Costa goes close twice in quick succession! Firstly, the Brazil international strikes the side netting with a free-kick effort, before being denied well by Roberto in a one-versus-one situation. Moments later, Olympiakos break and threaten, but Neuer remains untested this side of the interval.
57' Kimmich goes down heavily under pressure from Siovas and Cambiasso, but there didn't appear to be much contact from either Olympiakos man. The referee has been very sure of himself this evening, with the official definitely not afraid to make controversial decisions.
M. Benatia
R. Lewandowski
FC Bayern München
56' Guardiola isn't willing to risk having an imbalance in his team, with Badstuber's red card leading to a change in personnel. Benatia comes into the fray for Lewandowski, with a defender replacing a striker.
54' Over the bar from Masuaku! The French left-back tries his luck from a free kick, in the aftermath of Badstuber's dismissal. His attempt is deflected behind for a corner, but the resulting set piece comes to absolutely nothing. The away side will now be looking to make their numerical advantage count.
H. Badstuber
Red Card
FC Bayern München
52' BAYERN GO DOWN TO TEN MEN! Ideye is released in behind the hosts' back four, with Badstuber struggling to keep pace with his man. After a possible tangle of legs, the ex-West Brom striker is left in a heap on the floor, with the referee racing over to brandish a red card!
50' The away side threaten down the right-hand side, but a shot from Elabdellaoui rockets harmlessly high and wide of the target. Olympiakos continue to look dangerous on the break, sporadically, but Bayern are exerting all of the control in this contest.
48' Coman tries to beat Masuaku down the right-hand side, but the Olympiakos left-back is penalised for tugging on the shirt of his man. Bayern have a free kick on the very edge of the box as a result, but at a very tight angle indeed. Kimmich has the ball set back to him, but the substitute sees his shot blocked.
46' We are back underway in the second half! Die Roten have a commanding advantage, but need to continue in the same vein to close out this result. A win would see Guardiola's men slide in front at the summit of their group.
HALF TIME! The hosts head into the interval with a 3-0 lead, given to them by Douglas Costa, Lewandowski and Muller. Olympiakos just haven't been able to force Neuer into much action, with Marco Silva probably best to lean towards damage limitation at this point.
45' There is one minute of stoppage time in the first half.
44' Fortunately for Boateng, the visitors fail to make the aforementioned free kick count. A curling effort doesn't hit the target, with Neuer not looking too worried at all. The Greek outfit just haven't been able to muster up a dangerous chance.
J. Boateng
Yellow Card
FC Bayern München
42' Boateng is forced to shove Seba to the turf on the edge of his penalty area, gifting the away side with the opportunity to whip a dangerous delivery into the box.
40' Bayern are finishing the half how they started it, with immense pressure being piled onto the visitors. A cross is swung into the penalty area from the right, but Lewandowski remains hungry for service. Douglas Costa delivers a ball from the opposite flank moments later, but Roberto gathers easily.
38' Kimmich tries his luck from range, but the young substitute can't keep his effort down whatsoever. The ball balloons into the stands, with Roberto left relieved. Olympaikos try to respond with an attack of their own, but Boateng covers across brilliantly to deny Seba.
36' Bayern win themselves a corner on the left flank, but Olympiakos clear their lines with ease. Only 10 minutes remain in the first half, but the away side do not look capable of coming back from this sizeable deficit. All of the chances are falling to Die Roten.
34' Rafinha opens play out to Coman on the right-hand side, but a poor touch from the France international means that Masuaku can deny him easily. As always, Guardiola's men are trying to work an overload, before pinging the ball out wide to take advantage of it.
J. Kimmich
A. Robben
FC Bayern München
33' Robben falls very awkwardly while trying to keep a ball in play, meaning that Kimmich is immediately readied and thrown into the fray. The youngster will slot into the centre of midfield.
32' Coman is released down the left flank, before setting a pass back to Rafinha. The Brazil international finds Vidal, who looks to clip a diagonal ball over Masuaku, but the recovering defender heads away. Olympiakos counter, but Ideye runs into traffic on the periphery of the penalty area.
30' The home outfit continue to probe and press, with Rafinha opening play out to the right flank. Bayern bide their time, working possession back out to the opposite wing once again. The Bundesliga leaders aren't to be rushed, with their three-goal advantage meaning that they can force Olympiakos to come to them.
28' Just wide from Muller! The German forward is picked out in the right channel, before driving his way towards the byline! He fires a low shot just beyond the far post, with Roberto sprawling desperately to try and cover his angles well.
26' Olympiakos are really sinking without any kind of trace in Bavaria tonight. Neuer has been relatively untested, with the Germany international only having to come off his line on two occasions. There is a minor break in play, with Kasami and Vidal going down heavily after a clash of shins.
24' Another chance goes begging! Lewandowski is picked out deep in the opposition penalty area, with Roberto rushing out to pressure the ex-Lech Poznan striker! With an acrobatic half volley, the Bayern forward can only guide a bouncing effort just inches beyond the far upright!
22' Guardiola's men have blown Olympiakos out of the water in the early stages, with the visitors looking utterly shellshocked. Every time that Die Roten power their way forward, the Greek outfit look like conceding.
A. Robben
Assist
FC Bayern München
20' After being instrumental in the earlier move, the Dutchman is on hand to flick a neat assist into the centre of the penalty area from the right byline.
T. Müller
Goal
FC Bayern München
20' BAYERN MAKE IT 3-0! Robben whips in a lovely cross from the right-hand side, after yet more patient build-up play from the hosts! Muller is on hand to steer home a close-range finish, with Roberto being caught out of position while trying to protect his near post!
18' Bayern are really flexing their muscles in this opening 20 minutes, but the Bavarian giants aren't showing any signs of slowing down any time soon. Robben has been a real live wire down the right flank and has caused problems galore thus far.
K. Coman
Assist
FC Bayern München
16' Lewandowski did the hard work, with the ex-Juve youngster only having to slip a simple pass into his Polish teammate.
R. Lewandowski
Goal
FC Bayern München
16' That's two for the home side! Lewandowski weaves his way left and right in order to find space on the edge of the penalty area, before unleashing a finish that Roberto just can't stop! The Poland international continues his good early season form!
12' Nearly 2-0! Muller takes aim from the best part of 25 yards out, but the German forward sees his shot deflect narrowly wide of the near post! The resulting corner is whipped in from the right flank, but Cambiasso lashes a timely clearance away.
10' Ideye is the target for a through ball, with the Nigerian forward able to nip in behind Badstuber. Fortunately for the German defender, Neuer is on hand to mop up the scraps. Moments later, the ex-Schalke shot-stopper lumps clear, following another dangerous direct pass upfield. Olympiakos aren't looking to sit back and lick their wounds.
Douglas Costa
Goal
FC Bayern München
8' Olympiakos are behind already! Roberto parries a powerful effort, with Douglas Costa able to respond quickest! The Brazil international pounces opportunistically, thumping a low finish across goal and inside the far upright! Bayern are 1-0 up!
7' Douglas Costa is fed to the left byline, but the ex-Shakhtar man sees a cross easily cut out. Bayern are piling on the pressure in the early stages, but the likes of Ideye and Pardo have had a little bit of joy on the break.
5' Coman is picked out on the left-hand side, but the Frenchman can only lash a half-volleyed effort way wide of the far upright! Roberto is yet to be tested, with Olympiakos able to reply immediately. Pardo is able to dribble into a pocket of space on the edge of the penalty box, but the Colombian midfielder can only drag a low drive well wide!
3' Robben causes some problems down the right-hand side early on, but Masuaku stands firm on two separate occasions to deny the Dutchman. Olympiakos try to respond with a foray forward of their own, but a long pass from Milivojevic heads straight out at the byline.
1' We are underway in the first half at the Allianz Arena! The hosts are donning their usual red, which means that Olympiakos are forced to wear all blue. 
Olympiakos substitutes: Maniatis, Fortounis, Finnbogason, Dominguez, Salino, Kapino, Hernani.
Olympiakos starting line-up (4-3-3): Roberto; Elabdellaoui, Da Costa, Siovas, Masuaku; Kasami, Cambiasso, Milivojevic; Pardo, Ideye, Seba.
Bayern substitutes: Benatia, Martinez, Alonso, Kirchhoff, Rode, Ulreich, Kimmich.
Bayern starting line-up (4-3-3): Neuer; Lahm, Boateng, Bastuber, Rafinha; Muller, Vidal, Douglas Costa; Robben, Lewandowski, Coman.
TEAM NEWS: Felipe Pardo and Seba will offer the threat in wide areas for the away outfit, with former West Brom and Dynamo Kyiv striker Brown Ideye starting up top. Arthur Masuaku and Omar Elabdellaoui offer solid options at full-back, though the Greek side's central defensive pairing offer a little less recognised quality. Alfred Finnbogason takes a seat on the bench, as well as Argentine maestro Alejandro Dominguez.
TEAM NEWS: Holger Badstuber gets a rare start at the heart of the hosts' defence, after returning from long-term injury woe. Rafinha will start at full-back, with David Alaba missing out of the squad. In a very offensive midfield set-up, Die Roten boast Arturo Vidal, Thomas Muller and Douglas Costa, with Kingsley Coman and Arjen Robben deployed out wide. Robert Lewandowski leads the line, with Guardiola having a world-class bench to dip into as well.
I'm Simon Harrison and I will be keeping you up to date with all of the action from Bavaria, as Marco Silva's side look to continue their recent good form. As it stands in Group F, both of these sides boast the same record. They have nine points apiece, coming from three wins and a defeat. Arsenal and Dinamo Zagreb, meanwhile, sit on merely three points.
Hello and welcome to live coverage of Olympiakos' trip to face Bayern Munich at the Allianz Arena, as Pep Guardiola's men look to continue to look good in the Champions League. After a 5-1 thrashing of Arsenal last time out in this competition, Die Roten will be high on confidence. The visitors, meanwhile, are unbeaten in their last 11 matches.
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