Dolphins' Tua Tagovailoa Hospitalized After Second Head Hit in Two Games - The New York Times
How does NFL's concussion protocol work? Questions surrounding Tua Tagovailoa - The Athletic
NFL under fire over its concussion protocol following Tua Tagovailoa's back- to-back game hits - ABC News
Tua Tagovailoa's Head Injury Prompts Changes To NFL Concussion Protocols - WSJ
Tua Tagovailoa's return suggests NFL concussion protocol means nothing
Unbeaten in 4 starts vs. Patriots, Dolphins' Tagovailoa brings NFL's top offense into latest matchup
NFL's concussion protocol again under scrutiny after Tua Tagovailoa is hit hard again
Explaining the NFL's latest concussion controversy and policy change : NPR
NFLPA's surprising answers to Dolphins' concussion protocol