Friday marks the 75th anniversary of Lou Gehrig's retirement from baseball.
Gehrig gave his famous speech, where he called himself "the luckiest man on the face of the earth," on July 4, 1939 at old Yankee Stadium.
The Hall-of-Famer and Yankees legend played 2,130 games in a row until he was physically unable to play because of the neuromuscular disorder called amyotrophic lateral sclerosis.
Major League Baseball players will honor Gehrig Friday by wearing special commemorative patches on their uniforms.
Teams will honor his legacy and raise awareness about ALS at special pregame ceremonies and other events throughout the month of July.
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