The Marlins have acquired Alfredo Amezaga from the Rockies for minor league infielder Jesus Merchan, according to Joe Capozzi of the Palm Beach Post (via Twitter). Joe Thurston was designated for assignment in order to make room for Amezaga on the active roster.
In nine big league seasons, Amezaga has a slash line of .251/.311/.339. The 33-year-old didn't impress at the plate in 20 big league games for the Rockies this season but managed a .305/.385/.444 slash line in 67 games for their Triple-A affiliate. Amezaga played four seasons for the Fish from 2006 through 2009.
Merchan, 30, hit .268/.313/.328 in 196 plate appearances for Triple-A New Orleans this season.