The Minnesota Twins placed struggling starting pitcher Bailey Ober on the 15-day injured list on Wednesday with a left hip impingement. Ober is 4-6 with a 5.28 ERA in 17 starts this season, with 21 home runs allowed and 74 strikeouts in 92 innings. In his last five starts, the 6-foot-9 right-hander is 0-5 with a 9.00 ERA and 14 home runs allowed in 30 innings.