India, June 29 -- Chris Johnson, a former running back for the Tennessee Titans and Arizona Cardinals, disclosed in an interview with ABC's "Good Morning America" that he has been diagnosed with ALS. This interview was broadcast on Monday.

Johnson, 39, informed GMA co-anchor Michael Strahan that he received his diagnosis in 2025. Amyotrophic lateral sclerosis (ALS), previously referred to as Lou Gehrig's disease, is a neurological condition that impacts motor neurons. Motor neurons are the nerve cells located in the brain and spinal cord responsible for regulating voluntary muscle movements and respiration. There is currently no known cure for the disease.

"There's no history of ALS in my family," said Johnson while using a speech-gener...