Billy Wagner goes on the disabled list with a strained forearm:

Wagner had an MRI exam and X-rays on his pitching arm Tuesday. The tests showed no structural damage, but the forearm strain requires rest.

"It's like a pulled hamstring," he said.

The left-hander is 0-1 with a 2.30 ERA and 27 saves in 45 appearances. After sitting out a game with a sore shoulder two weeks ago, Wagner began feeling discomfort near his elbow while pitching in Florida last Tuesday.

Seven blown saves is the most Wagner's recorded in a season since 2000, when he was 6/15 for Houston.