The Rangers placed Kevin Millwood on the disabled list with a strained groin on Sunday before the team's game against the Athletics, according to The Associated Press. Texas recalled Doug Mathis from Triple-A Oklahoma to take Millwood's roster spot. Millwood, the team's number one starter, is 2-3 with a 4.88 ERA in nine starts this season. The right-hander left his start on Saturday night in the first inning after throwing just twelve pitches.