The NFL Players Association plans to initiate a review of whether the Miami Dolphins followed the league's concussion protocol when allowing quarterback Tua Tagovailoa to return to Sunday's game, ESPN and NFL Network reported.
Tagovailoa left the game against the visiting Buffalo Bills with 2:19 left in the second quarter. Bills linebacker Matt Milano shoved him to the ground for a roughing-the-passer penalty, and the back of Tagovailoa's head hit the turf. He was wobbly and stumbled to the ground while running off under his own power.
Tagovailoa ended up returning for the Dolphins' first possession of the third quarter.