The Marlins placed infielder Nick Green on the 15-day disabled list with a left thumb sprain. The move is retroactive to Aug. 13.
Infielder Gil Velazquez replaces Green on the 25-man roster. Velazquez, 32, was batting .314 with Triple-A New Orleans in 101 games this season.
Outfielder Logan Morrison was transferred to the 60-day disabled list. Morrison has a right knee injury that might require offseason surgery.