The Blue Jays traded infielder John McDonald to the Detroit Tigers on Friday in exchange for a player to be named later. McDonald hit .290 with 12 RBI in 37 games. The backup infielder started 27 games this season, 25 at shortstop and two at second base. Acquired by Toronto from Cleveland last December, McDonald hit a career .239 in 322 games with four home runs and 45 RBIs while playing for the Blue Jays and Indians. The Blue Jays needed to make room for rookie infielder Aaron Hill, who is hitting .326 as Corey Koskie's replacement at third. Koskie is recovering from a broken right thumb and ligament tear, and is expected to return to the Blue Jays soon.