Former NFL running back Chris Johnson said Monday that he has been diagnosed with ALS, the progressive nervous system disorder that affects motor neurons and has no cure.
The former Tennessee Titans star, known to fans as CJ2K, made the announcement on June 29 during an appearance on "Good Morning America." Johnson is 39 and was diagnosed with the disease in 2025.
“First, I want people to know that I'm still me,” he said. “ALS has changed what my body can do, but it hasn't changed who I am.”
Johnson said his mind remains sharp and that his love for his family is as strong as ever. He also said he will not back down, even though his body has already changed drastically. He pointed to how different life is now, saying that just a year ago he could pick up his 7-year-old daughter for her birthday to make a wish, but now he cannot.
Born and raised in Orlando, Florida, Johnson went to Olympia High School, where he played football and ran track and field. In football, Rivals.com rated him as a 2-star recruit, though he still drew plenty of college offers. He chose East Carolina over UConn, USF and others.
He also stood out in track and field. Johnson helped lead his 400-meter relay team to national championships and finished second in the 100 meters at the 2004 Florida 4A State Championships, behind eventual Olympic bronze medalist Walter Dix.
At East Carolina, Johnson became one of the top players in Conference USA. His college career produced 4,278 all-purpose yards and 42 touchdowns, and his senior season was his breakout year. He earned First-team All-C-USA honors in 2006 and 2007 and was named C-USA Special Teams Player of the Year in 2007.
His college numbers tell the story of that rise: 561 rushing yards and 5 touchdowns as a freshman, 684 rushing yards and 6 touchdowns as a sophomore, 314 rushing yards and 4 touchdowns as a junior, then 1,423 rushing yards and 17 touchdowns as a senior. He also added 236 receiving yards and 2 touchdowns in 2004, 356 receiving yards and 2 touchdowns in 2005, 176 receiving yards in 2006, and 528 receiving yards and 6 touchdowns in 2007.
Johnson entered the NFL as a first-round pick, selected 24th overall by the Titans in 2008. His speed and big-play ability quickly made him one of the league’s most explosive running backs, and the CJ2K nickname stuck.
His signature season came in 2009, when he rushed for over 2,000 yards and broke the NFL single-season record for scrimmage yards with 2,509. He was named NFL Offensive Player of the Year that season.
Johnson played 10 seasons in the NFL and finished with 9,651 rushing yards and 55 touchdowns. He spent six seasons with the Titans, one with the Jets and three with the Cardinals before retiring in 2017.
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