He came up in the Mariners ' minor league system as a shortstop before transitioning to the outfield and being traded to the Orioles before the 2008 season .
He came up in the Mariners ' minor league system as a shortstop before transitioning to the outfield . 
 He made his MLB debut with the Mariners in 2006 and was traded to the Orioles before the 2008 season .