The Tigers have shipped minor league infielder Jack Hannahan to Oakland for Jason Perry, an outfielder who has spent the entire season in Triple-A Sacramento.
Perry, who will turn 27 this week, has batted .268 with 18 home runs and 58 RBIs in 78 games at Triple-A Sacramento this season. Perry, a left-handed hitter, has fared much better this year against right-handers (.288) than left-handers (.208).
Perry is an adequate defender with some power who will add depth at Triple-A. He's not expected to play in the majors for Detroit this season, but could receive an invitation to big-league spring training in 2008.