At least a dozen NFL players have suffered from ALS
Dwight Clark Cause of Death: How Did The 49ers Legend Die?
San Francisco 49ers Great Dwight Clark Dies From ALS - CBS San Francisco
49ers great Dwight Clark dies at 61 after battle with ALS
Dwight Clark Cause of Death: How Did The 49ers Legend Die?
49er great Dwight Clark — receiver who made The Catch — dies at 61
49er great Dwight Clark — receiver who made The Catch — dies at 61
Dwight Clark, former 49ers wide receiver, dead at 61
Dwight Clark Cause of Death: How Did The 49ers Legend Die?
Dwight Clark dead: 49ers legend passed away at 61 from ALS - Sports Illustrated