Jackie Robinson, the first African American to play in the Major League, Robinson's number has been universally retired by all MLB teams. After the Yankees Mariano Rivera finally retires, the number 42 will only be worn on Jackie Robinson Day.
"I never want to quit playing ball. They’ll have to cut this uniform off of me to get me out of it. Unfortunately, in he was paralyzed in an automobile accident and had to cut his baseball career short.