Damar Hamlin's Injury Spurs New Concerns About Injuries on NFL Fields - Bloomberg
First & Long: Bears' Need for Blue Chip Talent Obvious, Whitehair Injured, NFL Concussion Protocol Under Heavy Scrutiny - Bears Insider
Concussions and college football: Trial starts
Explaining the NFL's latest concussion controversy and policy change : NPR
NFL, players union aim to release new concussion protocols before Thursday's game, source says
NFL's concussion protocol again under scrutiny after Tua Tagovailoa is hit hard again
From Tua Tagovailoa to Jack Eichel: How much control should a team have over an athlete's body? - The Athletic
With Justin Fields coming to town, Falcons picking Kyle Pitts in 2021 faces new scrutiny - The Falcoholic
Damar Hamlin toy drive for kids raises millions
NFL's chief medical officer tells DailyMail.com the league will 'learn' from Tua injury
We Can Make Football Safer - Scientific American