Arsenal boss Arsene Wenger admits defeat at Watford has also left them with fresh injury concerns.

Danny Welbeck and Laurent Koscielny both failed to finish the game at Vicarage Road.

A disappointed Wenger offered an update after the match.

“It looks to be a hamstring with Welbeck," Wenger said.

“I don't really know because everybody is shocked in the dressing room [about the result]. It looks a muscular problem.

“Koscielny is a muscular problem as well."