Arsenal v Olympiakos - in pictures

In a surpise move Arsène Wenger decides to start the game with Robin van Persie on the bench - perhaps with one eye already on Sunday's north London derby Photograph: Tom Jenkins for the Guardian

Lets hope that Arsène's young team, which includes three Champions League debutants, can organise themselves better after kick-off than they have for the team photo Photograph: Tom Jenkins for the Guardian

One of those players, Alex Oxlade-Chamberlain starts strongly and after just eight minutes sets off on a run across the edge of the box. He gets a lucky break when the ball cannons back off a defender into his path ... Photograph: Tom Jenkins for the Guardian

... and he takes full advantage, stroking a diagonal shot into the bottom corner Photograph: Tom Jenkins for the Guardian

Oxlade-Chamberlain, 18, becomes the youngest Englishman to score in the tournament Photograph: Tom Jenkins for the Guardian

André Santos celebrates with the youngster. Santos was to get on the scoresheet himself in the 20th minute, slotting the ball past Franco Costanzo at the near post from a narrow angle
Photograph: Tom Jenkins for the Guardian

The Arsenal defence attempt to organise themselves at a corner Photograph: Tom Jenkins for the Guardian

But they haven't been doing the best of jobs and in the 27th minute when Olympiakos pull a goal back. David Fuster, here skipping past Alex Song, rose completely unmarked to meet a corner and head the ball over Szczesny and into the net Photograph: Tom Jenkins for the Guardian

Marouane Chamakh loses out to José Holebas Photograph: Tom Jenkins for the Guardian

... but successfully shields the ball from Olof Mellberg Photograph: Tom Jenkins for the Guardian

Santos shows he's good in the air as well as on the floor when he wins a header against David Fuster
Photograph: Tom Jenkins for the Guardian

Bacary Sagna tussles with Holebas Photograph: Tom Jenkins for the Guardian

Olympiakos continue to apply the pressure and with Arsenal's defence beginning to buckle, Andrey Arshavin appears to be seeking help from a higher being. His prayers were answered – Arsenal retaining their 2-1 lead at the half Photograph: Tom Jenkins for the Guardian

Oxlade-Chamberlain takes on four Olympiakos defenders Photograph: Tom Jenkins for the Guardian

Due to Wenger's touchline ban, it's left to Pat Rice to bark out the orders to the players Photograph: Tom Jenkins for the Guardian

Emmanuel Frimpong tackles Kevin Mirallas Photograph: Tom Jenkins for the Guardian

Just past the hour mark, the Olympiakos right-back Vasilis Torosidis cuts inside from the right touchline and curls a shot towards the top left-hand corner. Szczesny throws himself after the ball but he's nowhere near it ... Photograph: Tom Jenkins for the Guardian

... Luckily for Szczesny it smacks the cross bar and rebounds away to safety. That was a mighty huge let-off for Arsenal Photograph: Tom Jenkins for the Guardian

That's one way to keep your opponent at arm's length Photograph: Tom Jenkins for the Guardian

With 20 minutes to go, Van Persie is brought into the fray, but he isn't able to help Arsenal increase their slender lead. Luckily for Wenger's team their opponents weren't able to pull one back either and the game finishes 2-1. The win leaves Arsenal second in Group F Photograph: Tom Jenkins for the Guardian