The Giants have acquired infielder Donovan Walton from the Mariners in exchange for pitching prospect Prelander Berroa, according to announcements from both teams. San Francisco has designated first baseman Mike Ford for assignment to clear space on the 40-man roster.

Walton, 28 later this month, has appeared in the majors in each of the past four seasons. He’s tallied just 102 cumulative plate appearances across 37 games, though, and his only MLB outing this year saw him enter as a pinch-runner. A left-handed hitter, Walton has posted a modest .196/.260/.315 showing in the majors.

The Oklahoma State product has a more robust body of work in the minors, where he’s a .287/.375/.427 hitter in parts of six seasons. That includes a .302/.391/.518 line in just shy of 400 trips to the plate at Triple-A, and Walton’s hitting .294/.368/.510 through 12 contests there this season. Perhaps of greatest import to the Giants, he’s a versatile defender who has a ton of professional experience in the middle infield. He figures to bounce around the diamond in a utility capacity for a Giants team that has dealt with injuries to both Evan Longoria and Tommy La Stella (although Longoria is making his season debut today). Walton is in his final minor league option year, meaning the Giants can shuttle him between San Francisco and Triple-A Sacramento for the remainder of the season if he sticks on the 40-man roster.