Infielder Jorge Polanco and the Seattle Mariners finalized a $7.75 million, one-year contract on Monday. A 31-year-old second baseman who also has played at shortstop and third base, Polanco hit a career-low .

Jorge Polanco is headed back to the Mariners at a new position. Find the details of the surprise move at MLB Trade Rumors.

The Mariners are reuniting with infielder Jorge Polanco on a free-agent contract, a source told MLB.com's Mark Feinsand on Thursday night. The club has not confirmed the deal, which is expected to guarantee him $7.