AP —

Chris Johnson, one of nine players in NFL history to rush for more than 2,000 yards in a season who made the Pro Bowl in each of his first three years with the Tennessee Titans, revealed in a television interview aired Monday that he has ALS.

Johnson, 40, spent 10 seasons in the league and last played in 2017 for the Arizona Cardinals. He said on ABC’s “Good Morning America” that he was diagnosed with the fatal nervous system disease last year.

“Honestly, I don’t know if you really fully process it,” he said, using his eyes to communicate through a computerized speech-generating device during the interview with Michael Strahan. “At first you’re in shock. Then you realize you have two choices: You can give up or you can fight. I chose to fight.”

Johnson, a first-round draft pick out of East Carolina in 2008, rushed for 7,965 yards over six seasons with the Titans. The native of Orlando, Florida, had 2,006 yards in 2009 to earn the nickname “CJ2K” and ingratiate himself with the Tennessee fan base.