Midfielder Wilshere's World Cup dream is in jeopardy after breaking a bone in his foot playing for England against Denmark last week.
He said: "I was gutted for him, we all were. He seems like he was positive about it, and that's the only thing he can be.
"He's got to keep his head down. I do feel sorry for him, particularly with the luck he's had with injuries.
"But if anyone is going to be able to bounce back he is, and you can say the same with Theo Walcott.
"Jack was out so long with his ankle before and with the professionalism he showed through that tough time, if anyone can bounce back in time for the World Cup then it's him. I'm sure he'll be fine."
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