Postpublished at 21:01
Olympiakos 0-2 Arsenal
While Arsenal's first goal came following a sustained spell of possession, their second was more against the run of play. But who cares? Arsenal certainly don't...
Arsenal & Chelsea through to last 16
Giroud's first Arsenal hat-trick
FT: Chelsea 2-0 Porto
Marcano own goal, Willian strike
Round of 16 draw on Monday 14 Dec
Gary Rose
Olympiakos 0-2 Arsenal
While Arsenal's first goal came following a sustained spell of possession, their second was more against the run of play. But who cares? Arsenal certainly don't...
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Chelsea 2-0 Porto
Simple but very effective. This was how Chelsea rolled last season. Diego Costa (19) bullying defenders to hold up the ball, then bringing in the fleet-footed Eden Hazard (10). Hazard glanced up to pick out Willian (22), who drilled in his seventh goal of the season. And his first that isn't a free-kick!
Olympiakos 0-2 Arsenal
Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live
"It was an excellent save but what makes it better is it was going to Cech's right but he saved it with his left hand."
Olympiakos 0-2 Arsenal
Tense, tense stuff at Olympiakos.
First, Theo Walcott sees a shot from a decent position inside the area deflected behind for a corner. Could he have done better? Possibly.
Moments later, Petr Cech pulls off a big save, stretching out an arm to somehow keep out Kostas Fortounis' strike that seemed destined for the top corner.
This game is far from over.
Valencia 0-1 Lyon
John Bennett
BBC World Service
"Interesting dynamic between the two Neville brothers in the dug out.
"Gary - who can't speak Spanish - sometimes needs to turn to Phil - who can speak Spanish - to shout instructions at the players.
"Gary may need Phil a lot more in this second half. Valencia have been unconvincing, the locals aren't happy."
Olympiakos 0-2 Arsenal
Olivier Giroud (number 12) won the flick-on just outside the centre circle, then ran into the box and finished with aplomb. Not bad for a man who is struggling with a sore ankle.
Chelsea 2-0 Porto
Ian Dennis
BBC Radio 5 live senior football reporter at Stamford Bridge
"Chelsea take a decisive step towards the knockout stages. Relief for Jose Mourinho."
Willian (52)
A rare beaming smile from Jose Mourinho as Chelsea add a second.
Easy as you like for the Blues as Diego Costa holds the ball up from a throw in, plays the ball to Eden Hazard, who in turn spots the run of Willian and sends him clear and the winger drives in low from the edge of the area.
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Sometimes one word is all you need....
Olympiakos 0-2 Arsenal
Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live.
"We eulogised about the ball Ozil played in the first half, Joel Campbell has done the same. A wonderful pass to play Giroud in. Brilliant goal by Arsenal.
"Now just go through 10 minutes where you do not concede. Don't raise the hopes of Olympiakos."
Olivier Giroud (49 mins)
Scenes! Olivier Giroud, moments after taking that knock to his ankle, grabs Arsenal's second that, at the moment, is sending the Gunners into the last 16!
Brilliant from Joel Campbell, who holds up the ball inside the Olympiakos area, evades a couple of challenges and feeds a pass between defenders and into the path of Giroud, who fires home.
Olympiakos 0-1 Arsenal
Alex Oxlade-Chamberlain is up and warming up, but Olivier Giroud looks to be good to continue as he runs off the problem and is back on the pitch.
Olympiakos 0-1 Arsenal
Oh not a good start to the second half for Arsenal. Olivier Giroud goes over his ankle when he swings in a cross and he is straight on the ground, grimacing in pain.
Javier Hernandez cancelled out Lionel Messi's opener in Leverkusen.
It puts the German side on the brink of qualifying but they need a win as things stand. Elsewhere in their group, Roma are level with BATE Borisov. The scores leave Leverkusen and Roma locked on six points as they both chase second but the Italians have a better head-to-head.
Back under way at Olympiakos. Chelsea players are just jogging back out on to the pitch now as well. Big 45 minutes coming up. Who will join Manchester City in the last 16?
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Earlier we asked you what your manager would doodle to pass time in a news conference. David has sent us this take on 'he loves me, he loves me not'.
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Yes, it was rather head-bendingly up, down, all round last night. Very much twisted melons on the football desk here in Salford.
Chelsea 1-0 Porto
Pressure? What pressure? Everything is going swimmingly for Jose Mourinho and Chelsea so far. They are winning 1-0 and top Group G as it stands.
As we saw on Tuesday night, though, a lot could happen in the next 45 minutes...