Buffalo Bills running back LeSean McCoy was absent at the start of Thursday's practice as he deals with an ailing hamstring.
McCoy left practice on Wednesday with what coach Rex Ryan deemed a "tight hamstring." Ryan did not know the severity of the injury and would not speculate on whether McCoy would be able to play for the Bills (4-2) in their game against the Miami Dolphins (2-4) on Sunday (1 p.m., ET).