Arsene Wenger also revealed record signing Mesut Ozil, who had looked refreshed and scored in the 4-1 FA Cup quarter-final win over Everton on Saturday, could be set for a lengthy spell on the sidelines:
We have to make a scan tomorrow to see how bad it is but he's out for at least a few weeks. I hope it's not too bad.
Arsene Wenger blasted the actions of "very good diver" Arjen Robben after his side bowed out of the Champions League last night. Arsenal faced the task of having to overcome a 2-0 deficit from the first leg of their last-16 clash last month. The game against Bayern Munich ended 1-1.
Arsene Wenger said: "Robben is very good at getting the maximum of nothing and he is a great player and as well a very good diver, but it is part of it. He is a fantastic player, I would not deny that, he's one of the best players in the world.
"But he gets in front of a player and then he slows down and goes down. He gets the free-kicks. That's where we spoke about yesterday that the referee, if he gives him a yellow card on the first one when he goes down, he will not do it again."