Arsenal could have Alex Oxlade-Chamberlain and Theo Walcott available for the critical Champions League group clash with Olympiakos but both Olivier Giroud and Hector Bellerin have suffered fresh injuries, according to manager Arsene Wenger. The Gunners kept their European hopes alive with a comfortable 3-0 win over Dynamo Zagreb which combined with Bayern Munich's win over the Greek champions sets up a final day shoot-out for a place in the last 16.

A two-goal win for the north London club will see them progress to the knock-out stage and become the first side since Galatasaray in the 2012-13 season to qualify from the group having lost their first two games. The challenge facing Wenger's men is set to be eased by the return of Oxlade-Chamberlain and Walcott for the game, who have been nursin respective hamstring and calf problems.

However, Arsenal's injury list which was added to during the defeat to West Bromwich Albion after Francis Coquelin and Mikel Arteta picked up knee and calf blows, has swelled further after the Champions League success. Giroud and Bellerin were withdrawn in the second half and Wenger says both players were nursing minor fitness issues.

"Giroud had a little problem with his ankle at the weekend so I decided to give him breather," the Arsenal boss told reporters at a post-match press conference. "Hector Bellerin he had a groin problem just before so I had to take them off. We have five days to recover. I tried to compromise a little bit [with the substitutions] by taking off Giroud and not taking a risk with Bellerin.

"Back for Olympiakos, apart from tonight, Chamberlain certainly and Walcott has a chance. [Coquelin's injury] is what we feared basically, if we are being realistic it will be 12 weeks. No [surgery] it is medial ligaments."

Arsenal bounced back from the 5-1 hammering by Bayern to give themselves hope of progressing to the knock-out phase for a 13th straight season and Wenger says he never gave up hope despite the heavy defeat to the Bundesliga champions. "I felt we had a chance," the Frenchman added.

"The result on the night [in Bayern] was bad for us. Olympiakos won in the last minute in Zagreb and that made it very difficult. It depended on us as much as Bayern and we come out with at least a chance. We can make right what we didn't earlier.

"What you want is to come out of the game tonight with a chance to qualify and we need to do the job. Bayern needed to do the job. We did it well and it gives us chance but I believe we can do it."