NFLPA to investigate Dolphins' handling of Tua Tagovailoa's concussion check vs. Bills, per report | CBS Sports Headlines NFLPA to investigate Dolphins' handling of Tua Tagovailoa's concussion check vs. Bills, per report Tagovailoa briefly left Sunday’s game after suffering what the team called a head injury ESN FeedsThis post was … Continue reading NFLPA to investigate Dolphins' handling of Tua Tagovailoa's concussion check vs. Bills, per report