Former Arsenal goalkeeper David Seaman has claimed that the Gunners have shown that they are capable of defeating any side after beating Bayern Munich on Tuesday.
"We know what Arsenal are capable of. If they play well, then they can beat anybody," Seaman told talkSPORT.
"They played well in a different way last night but hopefully they will get the chance of going to Olympiacos and needing to get that win."
Arsenal take on Olympiacos on December 9.