Arsenal's French full back Mathieu Debuchy could be out until Christmas after suffering ankle ligament damage against Manchester City last weekend. Manager Arsene Wenger revealed that Debuchy will undergo an exploratory operation on his ankle injury on Friday evening which will determine how long he is out for. If he does not need further surgery, it will be six weeks before his return, but if he needs to go under the knife it will rule him out for at least three months. Mathieu Debuchy looks anguished after suffering ankle ligament damage against Manchester City . Debuchy was clearly distraught as he was lifted onto a stretcher at the Emirates stadium last weekend . The Arsenal defender is now set for an operation which could leave him out until Christmas . The Gunners will have to rely on 19-year-old defender Calum Chambers as their only established right back .
Mathieu Debuchy will have exploratory surgery on Friday . French full back could be out until Christmas if he needs a further operation . Arsene Wenger says the minimum he will be out for is six weeks . Arsenal lack cover in defence with only four fit senior defenders . Arsenal face Aston Villa on Saturday at Villa Park .