Dolphins quarterback Tua Tagovailoa placed in NFL concussion protocol
Two concussions don't always add up to second impact syndrome - KTVZ
Dolphins' Tagovailoa returns to practice in limited capacity after concussion
NFL, NFLPA nearing agreement on concussion protocol changes in wake of Tua Tagovailoa incident
NFL: Dolphins followed proper concussion protocol when assessing Tua Tagovailoa - The Athletic
Miami Dolphins QB Tua Tagovailoa out indefinitely after second head injury
NFLPA Agrees to Concussion Protocol Changes in Wake of Tua Tagovailoa's Injury, News, Scores, Highlights, Stats, and Rumors
Tua Tagovailoa took two big hits in a week. What is NFL protocol on concussions? : NPR
Dolphins' Tua Tagovailoa Out of Concussion Protocol
Tua Tagovailoa Officially Out With Concussion At New England - Bloomberg
NFL modifies concussion protocol after review of Tagovailoa injury
NFL's concussion protocol modified after Tagovailoa review