June 2 is now Lou Gehrig Day in baseball. This event has been established to bring awareness to the rare neurodegenerative affliction which felled the great New York Yankees star — Amyotrophic Lateral Sclerosis, or ALS. Now and going forward on every June 2, by recognizing baseball’s “Iron Horse” in this way, Lou Gehrig thus joins Jackie Robinson and Roberto Clemente as the only three players ever to be honored annually with dedicated, league-wide days of commemoration for their legacies.