SEATTLE -- The Mariners have bolstered their bullpen by acquiring right-handed reliever Sam Tuivailala from the St. Louis Cardinals in exchange for minor league pitcher Seth Elledge.
Tuivailala is 3-3 with a 3.69 ERA in 31 appearances for St. Louis this season, his second full season in the big leagues. He'll immediately jump into the playoff race with Seattle holding a one-game lead over Oakland for the second wild card in the American League.
Tuivailala also gives Seattle versatility. He's worked more than one inning in eight of his 31 appearances.