Stoke striker Crouch, interviewed by Sky Sports News for the Weekend Warm-Up programme, said: "I'm gutted for Theo.
"He was an absolute banker to go to the world cup and possibly start. Having experienced World Cups they are the pinnacle, really.
"They're fantastic to be a part of, so obviously I do feel sorry for him and I wish him a speedy recovery.
"Maybe Arsenal have ruled him out completely, but I think he'll have some hope and if he's got a chance he'll be trying, but if he is ruled out obviously it's a bitter blow."
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