Arsenal fear Olivier Giroud could be ruled out for as long as three months if a second scan confirms that he has a broken ankle.

That would leave Arsène Wenger facing a race against time to sign a new striker before the transfer window shuts next Monday.

Giroud sustained the injury in the dying seconds of the 2-2 draw at Everton after scoring Arsenal’s late equaliser. Arsenal are hoping Giroud has not sustained a fracture, but there is major concern at the Emirates that there is a break, after the Frenchman was sent for two scans.

The club are mindful of the fact that a hairline fracture to Jack Wilshere’s foot only showed up on a second scan after the initial swelling had gone down.

Giroud is definitely out of the Champions League play-off second leg against Besiktas tomorrow night and the Premier League trip to Leicester on Sunday, and there is a real concern that he could be out for a prolonged spell.