Miami quarterback Tua Tagovailoa hits his head on the turf, leaves Dolphins-Bills game because of a concussion

Miami quarterback Tua Tagovailoa hits his head on the turf, leaves Dolphins-Bills game because of a concussion

MIAMI GARDENS, Fla. -- Miami quarterback Tua Tagovailoa hits his head on the turf, leaves Dolphins-Bills game because of a concussion.