The Red Sox have acquired Mike Carp from the Mariners in exchange for a player to be named later or cash considerations.

Carp is expected to compete with Daniel Nava, Mitch Maier, Mark Hamilton and Lyle Overbay for at-bats as a left-handed option in the lineup.

"It increases the competition, particularly at first base and left field," manager John Farrell said. "We've had a chance to talk to some other guys that might be directly impacted by that, but we've been able to add a talented player to camp here -- someone we've had conversations about throughout the course of the offseason, and finally he became available. So another left-handed hitter who has that versatility on the defensive side.

"Personally, I have seen a very good approach at the plate -- a guy that doesn't seem to be overexposed with one certain type of pitch thrown."