Tom Morrison died in 2010 of lung cancer. He idolized Hall of Famer George Brett, who wore No. 5.
No Marlin has worn the number. It was retired in 1993 before the franchise's first game in honor of Carl Barger, who was team president when he died in 1992. Barger's favorite player, Joe DiMaggio, wore No. 5.
The Marlins offered to bring the number out of retirement for Morrison, who says he hasn't worn it since his senior year of high school. It was unavailable on his minor-league teams.