At least a dozen NFL players have suffered from ALS
Pro football players are 4 times more likely to die from ALS, study finds
A look back at the notable sports deaths in 2019
A visit with Tim Green: Despite ALS, 'every day is full for me' (video)
Dwight Clark, 49ers great famous for 'The Catch,' dies at 61 from ALS
The Tragic Risks of American Football
Risk of Diseases Like ALS Almost 4 Times Higher in Professional Soccer
From the NFL to ALS: Kerry Goode's Journey - Advancing Your Health
How NCAA Football Can Finally Limit Concussions - Global Sport Matters
Demaryius Thomas is latest NFL player to be diagnosed with CTE