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The England forward has been sidelined since April with bruising to the bone on his left knee.

He underwent surgery on damaged cartilage last week and is expected to be out until Christmas.

England boss Roy Hodgson recently ruled Welbeck out for at least the next six months but the Gunners are hopeful he will feature again before the New Year.

Either way, it is obvious that his absence is being felt by the Arsenal squad, with Sanchez taking to social media to hail his pal.

Sanchez posted: "Much strength my friend and I hope that you return to the team soon and to see you happy as in this photo."