Shares diagnosis in interview on Good Morning America

Chris Johnson, the former Tennessee Titans star, revealed on Good Morning America that he was diagnosed with ALS in 2025.

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He said the disease progressed quickly—from a weak grip to losing the ability to speak or hold objects within about a year. He now uses a voice-generating device and says he is “still me” despite the physical effects.

Johnson, known as “CJ2K” for his 2,000-yard 2009 season, is speaking publicly to raise awareness and hopes for more research into ALS, which he believes may be linked in part to repetitive football head impacts.

Former NFL RB Chris Johnson discusses ALS diagnosis – ESPN