Both players were missing for training yesterday.
"He (Sturridge) is here - that is the positive," he said.
"Hopefully Dan can get over the knock.
"He played with it (on Sunday) I think so fingers crossed he will be okay for Friday and Tuesday.''
Of his Gunners team-mate Wilshere, Walcott added: "He's had an illness so he needs an extra couple of days to recover.
"I am sure he will be fine, hopefully.''
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