Buffalo Bills coach Rex Ryan has responded to comments made by LeSean McCoy regarding his former Philadelphia Eagles coach Chip Kelly.

McCoy told ESPN The Magazine that "there's a reason [Chip Kelly] got rid of all the black players" in Philadelphia.

"I'm not going to put a muzzle on any of our players," ESPN quotes Ryan as saying.

"We're not always going to be lined up".

McCoy was traded to Buffalo during the off-season after spending six years with the Eagles, while Philadelphia then signed former Dallas Cowboys running back DeMarco Murray as his replacement.