90+4Ramsey (Arsenal) scores!
The Welsh midfielder latches on to Olivier Giroud's flick and delicately chips the ball over the advancing goalkeeper to seal Arsenal's victory.
81Pantelić (in) - Paulo Machado (out) (Olympiacos)- 80Ramsey (in) - Podolski (out) (Arsenal)
- 80Giroud (in) - Gervinho (out) (Arsenal)
The scorer and assist maker departs for Olivier Giroud who is seeking his first UEFA Champions League goal. - 73Ibagaza (in) - Diakité (out) (Olympiacos)
- 71Walcott (in) - Oxlade-Chamberlain (out) (Arsenal)
One England international departs for another in front of national team manager Roy Hodgson. - 67Abdoun (in) - Greco (out) (Olympiacos)
62Contreras (Olympiacos) is shown a yellow card.- 56Podolski (Arsenal) scores!
The German international receives Gervinho's cross four metres out. He finds space to turn and then shoots low left-footed underneath Balázs Megyeri. 
The referee blows for half-time.
A thrilling finish to the half with Kostas Mitroglou's brilliant header on the stroke of half-time levelling for the visitors after Gervinho's opener three minutes earlier.- 45+1Mitroglou (Olympiacos) scores!
Leandro Greco whips in a cross from the left and the Greek striker rises and powers a header over Vito Mannone and into the top corner. A spectacular goal. - 42Gervinho (Arsenal) scores!
Lukas Podolski plays in Mikel Arteta whose flick finds Gervinho in space on the edge of the area. The Ivorian turns and fires a low shot into the bottom corner of the net. - 29Koscielny (Arsenal) is shown a yellow card.
The Frenchman loses possession and his footing as he makes contact with Paulo Machado.
Second-half goals from Lukas Podolski and Aaron Ramsey sealed a second successive Group B win for Arsenal to take them top of the table. Olympiacos must now regroup after extending their run of defeats on English soil to 11.