Mariano Rivera is the current player and will be the last player on the Yankees to wear number 42. The number was retired throughout baseball in honor of Jackie Robinson. The players who were wearing that number when it was retired were allowed to keep it.
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Robbie Keane!
Al Oliver
Jay Cutler was the last player to wear number 6 for the Denver Broncos.
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Outfielder Steve Henderson in 1988.
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Currently, Yankees closer Mariano Rivera wears number 42. Mariano is the last day to day player to wear that number in Major League baseball, and upon his retirement or change of number, will be the last to ever wear the number 42.
Mariano Rivera still wears # 42. He is the last player in the league who will ever wear the number.
Mariano Rivera is the last player that Major League Baseball grandfathered in that still continues to wear #42. After Mariano, the number will not be issued again.