Pavard is caught by El-Arabi and Bayern win a free-kick deep inside their own defensive third. There is going to be a brief stoppage in play as Hernandez is down and in need of treatment following a collision with El-Arabi.

The defender looks in real discomfort. Thiago is the first player to receive a yellow card after catching Camara with a late challenge in the centre of the park.

He can have no complaints with that decision. Muller catches Guilherme and Olympiacos win a free-kick just inside the Bayern half.

Podence creates a yard of space after some clever footwork down the right flank, before lofting a cross in towards the penalty spot.

Bouchalakis peeled away from the Bayern defenders, but despite being unmarked, flicked his header beyond the far post.

We are back underway! Makkelie blows his whistle and Olympiacos get the second half kicked off. Bayern make one change at the break with Tolisso coming on to replace Martinez.

Olympiacos will be pleased with their first-half display and will look to continue in much the same fashion after the break. The home side have been resolute defensively, while the combination of Masouras and Tsimikas could continue to hurt Bayern after the restart.

The visitors, meanwhile, will seek to turn their possession into more clear-cut chances. Gnabry has been quiet thus far, but Kovac will hope that the winger can provide the spark that the German champions lacked during the opening 45 minutes.

There will be one added minute at the end of the first half. El-Arabi is a little too eager to regain possession and concedes a free-kick after catching Thiago.

Lewandowski bundles Tsimikas to the ground and the home side are awarded another free-kick deep inside their own half. Alaba skips away down the left side of the penalty area before driving a low cross into the box.

Coutinho gets goal side of Meriah but cannot sort his feet out as he somehow fires wide from only a few yards out. Olympiacos are awarded a free-kick in their own half following a hand ball by Gnabry.

Lewandowski has now scored 38 goals in 50 Champions League group stage matches. Bayern are level! The Polish striker is quickest to react and fires the rebound into the roof of the net from the centre of the box.

Olympiacos catch Bayern on the break as Bouchalakis drives forward before sending the ball to his left for Masouras.

Thiago unlocks the Olympiacos defence with a lofted throughball for Kimmich who made an overlapping run down the right wing.

The German looks to deliver a first-time cross, but Tsimikas is well placed to turn the ball behind for a corner which comes to nothing. Olympiacos scored with their very first shot on target.

A free-kick is given against Kimmich after the German was deemed to have handled the ball. Tsimikas showed real determination to get forward after skipping beyond Kimmich upon being played in by Masouras.

The defender picked his head up and delivered an inch-perfect cross for El-Arabi who found the bottom right corner. A well-worked goal.

Olympiacos take the lead! Podence floats a wonderful cross-field pass over to the left for Masouras, who sets Tsimikas away down the line. The full-back floats the ball in towards El-Arabi, whose far-post header is deemed to have crossed the line by goal-line technology.

After a period of sustained possession, Coutinho attempts to flick the ball around the corner for Lewandowski on the edge of the area, but Semedo steps up to cut out the danger.

Camara drives forward for Olympiacos before sliding the ball to his right for Guilherme. Following a corner from the left, which was conceded by Guilherme, the ball drops to Lewandowski on the edge of the area.

The Polish striker looks to curl his shot into the top left corner, but his effort loops over the bar. Olympiacos fail to clear their lines at the first attempt, and Gnabry looks to float a cross from the left into the far post for Coutinho.

Semedo reads the situation before getting across to hook the ball to safety. Gnabry picks out Coutinho down the left side of the penalty area, and the Brazilian cuts onto his right foot before firing straight at Sa.

Gnabry looks to drive the away side forward down the left wing but is caught by Masouras. Bayern are awarded another free-kick. Both sides have struggled to find their rhythm in the opening stages of the game due to a number of early fouls.

Elabdellaoui is deemed to have fouled Gnabry down the left-hand side of the field, and Bayern win a free-kick.

The resulting set-piece is delivered towards the far post where Martinez rises to meet it, but the Spaniard heads it just wide. The away side are enjoying a good spell of possession at present.

Martinez and Thiago are seeing plenty of the ball as Bayern look to make something happen from deep. Martinez brings down El-Arabi following a bright start from the home side, and Olympiacos win a free-kick in their own defensive third.

They've caused Olympiacos some real problems in the final third and they look likely to open the scoring if they can be more clinical in front of goal.

As for Olympiacos, they've barely been able to get out of their own half and Neuer hasn't had anything to do. Their best chance will be on the counter-attack, but they need to keep hold of the ball better when they do win back possession.

Despite their many chances, Bayern haven't managed to find a breakthrough and go into half-time level with Olympiacos.

They came closest just before the half-time whistle when Pavard's header bounced off the inside of the post following a corner for the home side.

Goretzka, Lewandowski and Coman have all seen shots saved by Sa and they haven't found a way to break the deadlock yet. It's the closest Bayern have come after the corner is swung into the box and Pavard reacts quickest in the middle to get on the end of it.

The goalkeeper is scrambling across his line, but Pavard's effort bounces back off the woodwork. It just isn't happening for Olympiacos as they try to get out of their own half to ease the pressure on their defence.

Their passing is letting them down and they're creating problems for themselves. Goretzka is given a lot of space on the edge of the box and he spots Coman making a run into the box on his left.

He squares a pass to him but just overhits it and Olympiacos are happy to see it roll out. The home fans are once again asking for a penalty as this time Coman goes to ground.

There wasn't much in the challenge from Semedo, who went across to see the ball out of play, and the claim is waved away.

The corner is swung deep into the box for Bayern and Coman gets his head to it to put it back into the middle. Lewandowski is closest to reaching it, but he had ran offside when the cross was played in so he has to let it run out.

Sa comes out to the left to take a free-kick for Olympiacos and is looking to pick out Podence's run on the left.

The forward doesn't time his run though and the flag goes up for offside as soon as he controls it. Coman makes a darting run into the box from the right wing and drills his shot across goal, looking for the far corner.

Sa gets across his line and punches the effort over the crossbar. Olympiacos have a free-kick on the halfway line and Guilherme plays a good pass down the right wing to Podence.

It bounces off his hand as he brings it down though and the chance goes to waste. The away side give the ball away straight from a throw-in and put themselves under pressure.

Lewandowski has his back to goal but Semedo catches him as he tries to win it back. Nothing comes of the free-kick.

Olympiacos are without a win in 11 Champions League games D2 L9 , conceding 28 goals while only scoring nine in this stretch since beating Dinamo Zagreb in November Bouchalakis latches onto a loose pass in the middle of the field but is instantly put under pressure from Coman.

He's caught by the Bayern player and Olympiacos have a chance to get out of their own half with the free-kick. Pavard chips a great cross into the box to pick out Lewandowski's run at the far post.

He makes good contact with the header, but it's straight at Sa who catches the shot. Yet again, Bayern are patiently keeping hold of the ball and building up their attacks.

Olympiacos can't get a touch that would allow them to take the pressure off, even for a few seconds. Olympiacos have a lot of bodies back in the box but Goretzka somehow manages to squeeze a throughball to Lewandowski.

He can't sort his feet out quick enough to have a shot but the flag goes up for offside anyway. Coman makes a good run into the box from the left side and pulls away from his defender to cross the ball across the goal line.

Sa jumps to get a hand to it and manages to push it out of Lewandowski's reach at the far post. Olympiacos are just starting to grow into the game a little bit now and are keeping the ball better when they do get the chance to counter-attack.

Guilherme puts a good cross into the box, but can't pick out a team-mate. Bayern can't find a way into the box and have to have another shot from distance.

This time it's Gnabry that gets the ball on the edge of the box and he curls his shot low towards the bottom corner, but Sa gets down well to save it.

Muller makes a really good run down the right of the box and tries to square a cross back into the middle. Tsimikas is tracking him all the way though and gets a foot to the ball to put it out of play.

It's all Bayern still at the moment, but they can't seem to find a way into the final third due to how well Olympiacos are staying in their shape and closing down the space.

Elabdellaoui has the chance to help his side get out of their own half but plays them into more trouble after giving the ball away to Goretzka with a sloppy pass.

He has a shot from the edge of the box, but it curls high over the crossbar. Muller has just gone down in the box in a challenge off the ball this time from Meriah.

The fans and the player are asking for a penalty, but just like before the referee waves the claim away. Bayern are patiently trying to build up their attacks from the back at the minute but are struggling to get into the final third due to Olympiacos closing them down quickly in midfield.

Coman squares the ball to Goretzka who is just outside the box and the midfielder decides to have a shot on goal. He strikes his effort low towards the bottom corner and Sa gets a hand to it to push it away.

Muller has gone to ground in the box and he feels that he was pushed in the back by Bouchalakis before he could bring the ball under control.

To his annoyance though, the referee waves away the claims. Bayern are keeping the ball well here in the opening exchanges of the game.

When it's played back to Alaba, he tries to pick out Lewandowski with a long pass over the top, but he can only find Semedo.

Lewandowski gets the game underway for Bayern! The teams are out on the pitch now, with kick-off just moments away. Bayern have won 27 of their last 29 home Champions League group stage matches D1 L1 , with one of those a win over Olympiacos in November Pedro Martins also makes three changes as his side look for their first win in the Champions League this season.

Flick names three changes from the side that lost to Frankfurt at the weekend with Coman, Martinez and Goretzka all coming into the starting line-up.

Boateng, Coutinho and Thiago drop to the bench. It comes on the back of a string of poor performances, so assistant coach Hansi Flick is taking charge until a permanent replacement is found.