The Marlins will promote right-handed pitcher Arquimedes Caminero to the major leagues on Friday, a source has confirmed to MLB Daily Dish. Caminero will fill the 25-man roster spot vacated by Steven Ames' demotion on Thursday.
Caminero, 26, has spent the entire season with Double-A Jacksonville, and has posted a 5-2 record and 3.61 ERA in 42 relief appearances. The 6'4'' 255-pounder was signed by the Marlins as an international free agent in 2005, and has spent the past nine seasons in the Marlins' minor league system. In 204 career minor league appearances, the Dominican native is 17-10 with a 3.55 ERA, 11.0 K/9 and 4.5 BB/9. He was ranked by Baseball America as the team's 20th best prospect before the 2010 season and displayed a fastball that consistently registered triple digits on the radar gun, but injuries have delayed his major league debut until this point.
Caminero will immediately replace Ames in the Marlins' bullpen, but because he is already on the 40-man roster, the team will not have to make a corresponding 40-man move.