A person with knowledge of the deal says designated hitter and outfielder Jack Cust has agreed to terms on a one-year contract with the Seattle Mariners.
The person spoke on condition of anonymity to The Associated Press on Wednesday because the deal was pending a physical and yet to be formally announced. Cust spent the past four seasons with Seattle's AL West rival Oakland and would likely become the team's regular DH.
The Athletics didn't offer a contract to Cust last week. He hit .272 with 13 home runs and 52 RBIs in 112 games last season. He added 68 walks for a .395 on-base percentage.
The 31-year-old Cust is a career .245 hitter with 102 homers and 300 RBIs in parts of parts of nine major league seasons.
The San Francisco Chronicle first reported the pending deal.