Lou Gehrig announced he had ALS on July 4, 1939, emphasis on ’39.Notice that Chris Johnson is age 39, and played for Arizona and New York (Arizona=39, New York=39).This news breaks 39 weeks and 6 days into his age.https://www.espn.com/nfl/story/_/id/49214999/former-nfl-rb-chris-johnson-discusses-als-diagnosis