FORT MYERS, Fla. - The Red Sox today acquired left-handed-hitting first baseman/outfielder Mike Carp from the Mariners in exchange for a player to be named or cash considerations, Boston announced in a release.

The move gives the Sox a much-needed lefty bat to complement two other new acquisitions, first baseman Mike Napoli and left fielder Jonny Gomes, both of whom bat right-handed.

To make room for Carp on the 40-man roster, Boston placed outfielder Ryan Kalish (right shoulder surgery) on the 60-day disabled list.

Carp, 26, batted .213 with six doubles, five home runs, and 20 RBI in 59 games for the Mariners last season, during which he spent three stints on the disabled list.

In 2011, Carp was among the American League's top rookies in batting average (third, .276), slugging percentage (second, .466), and OPS (second, .791). He appeared in 79 games that season, hitting 12 homers and driving in 46 runs.

A ninth-round selection of the New York Mets in the 2004 June Draft, Carp has hit .255 with 28 doubles, 18 home runs, and 71 RBI in 173 major-league games, all with the Mariners from 2009-12.

He owns a career .300 batting average (39-for-130) against left-handed pitchers. Defensively, he has posted a .997 fielding percentage in 82 career games (77 starts) at first base. His major-league outfield experience includes 52 games (48 starts) in left field and one game in right.

Kalish, 24, underwent what the Red Sox described as a successful right shoulder arthroscopy and posterior labrum repair in late January. In 36 games with Boston last season, he hit .229 with three doubles and five RBI.