What happened: Former running back Chris Johnson revealed in an interview with ABC's Good Morning America that he has been diagnosed with ALS, the neurodegenerative condition also known as Lou Gehrig's disease. Johnson, 39, told co-anchor Michael Strahan that he received the diagnosis in 2025. He starred for the Tennessee Titans and later played for the Arizona Cardinals.

Why it matters: A three-time Pro Bowl selection during his career, Johnson was one of the most explosive backs of his era and remains a prominent figure in Titans history. His disclosure adds a high-profile voice to ALS awareness, a cause the franchise has actively supported. The Titans organization responded to the diagnosis with a statement of support.

What to watch: Watch for further public response from Johnson, his former teams, and the broader NFL community as awareness of his diagnosis spreads.