Thornton (oblique) to DL; Beato back up

The Red Sox placed left-hander Matt Thornton on the 15-day disabled list (retroactive to Aug. 5) with a right oblique strain.

To fill Thornton's roster spot, right-hander Pedro Beato was recalled from Triple-A Pawtucket and will be active for tonight’s game in Houston.

Thornton suffered the injury Aug. 4 against the Arizona Diamondbacks, when he threw just six pitches before being taken out. Since joining Boston on July 13, he has gone 0-1 with a 2.16 ERA in 8 1/3 innings over 10 appearances.

“I don’t want to go to the disabled list -- it’s something I despise,” Thornton said on Tuesday. “But at the same time, the team comes first, and they have to make a decision.”

Beato will rejoin the Red Sox for his fourth major league stint of the year. In his nine games for Boston in 2013, he has gone 1-1 with a 3.12 ERA and four strikeouts in 8 2/3 innings.