West Ham stars Winston Reid and Andy Carroll will be out for a minimum of three months each after it was confirmed both players have suffered injury setbacks during the club's pre-season tour.
Centre back Reid has struggled with a knee problem and Carroll, notoriously injury prone throughout his career, will require minor ankle surgery after playing and scoring in the friendly against Winterthur on Sunday.
West Ham's head of medical Richard Collinge told the club's website: “Andy played and scored in Sunday’s match but is still reporting some discomfort in his ankle and further scans have revealed that he requires some minor surgery to provide more strength and stability to the area.