Chris Iott of MLive.com reports that the Tigers have acquired infielder Alexi Casilla from the Rays for a player to be named later or cash considerations.
Best known for his time as a starting second baseman for the Twins, Casilla appeared in one game with the Orioles in 2014, but he has mostly played in the minors over the past two seasons. The 30-year-old was batting .315/.379/.449 with three home runs, 14 RBI, and four steals over 37 games this season with Triple-A Durham.
Iott notes the Tigers have parted with a bunch of middle infield options in the minors over the past year, so this move was aimed at improving their depth. Casilla is expected to play shortstop in Triple-A.