NFL players supported the movement started by Colin Kaepernick and joined a growing wave of sports stars to defy the president. #NBCBLK #TakeAKnee (📷: Stacy Revere/ Getty Images) (📷: Sean Haffey / Getty Images) (📷: Adrian Kraus / AP) (📷: Matt Dunham / AP) (📷: Paul Childs / Action Images)