LeSean McCoy injured his left hamstring on Tuesday, but he's expected to be ready for the Buffalo Bills' opener on Sept. 13.

Following practice, Rex Ryan said trainers informed him the hamstring was intact and had not been pulled off the bone, which he described as "a real positive."

McCoy was hurt about an hour into practice when he pulled up while running a route during a 7-on-7 red-zone drill against the Browns.