Changes coming to NFL concussion protocol a needed step for player safety
NFL's handling of concussions questioned after Tua's injury, Sports
Tua Tagovailoa concussion investigation: NFL believes Dolphins followed protocol with QB's injury
NFL under fire over its concussion protocol following Tua Tagovailoa's back-to-back game hits - ABC News
NFL's handling of concussions questioned after Tua's injury
The Dolphins failed Tua Tagovailoa. Will any change come of it?, NFL
NFL's handling of concussions questioned after Tua's injury