MIAMI -- Miami Dolphins quarterback Tua Tagovailoa was accidentally knocked backward during a May practice, and he began to backpedal before losing his balance.
If it were any other player, nobody would have noticed. But Tagovailoa isn't any other player, not after two diagnosed concussions last season and a third hit that prompted the NFL to change its concussion protocol. All three of those hits featured Miami's potential franchise quarterback hitting the back of his head on the turf.
And on this day, he seemed headed toward a similar tumble.
But Tagovailoa's offseason has been about change.