The Tigers have designated pitcher Justin Miller for assignment, Chris Iott of MLive.com tweets. The move clears space for lefty Kyle Ryan, who will make his MLB debut tonight as the starter for the second game of a doubleheader against the White Sox.
Miller has pitched 12 1/3 innings out of the bullpen for the Tigers this season, posting a 5.11 ERA while striking out five batters and walking two. The 27-year-old righty has had a good season for Triple-A Toledo, posting a 1.81 ERA with 7.9 K/9 and 2.4 BB/9 in 44 2/3 innings. Miller missed the 2012 season due to Tommy John surgery, then was released by the Rangers near the end of last season. He signed a minor league deal with the Tigers last September.