Duchscherer is out for the season

Oakland right-hander Justin Duchscherer will undergo season-ending surgery on his injured right hip, the latest injury news to hit the Athletics’ bullpen this season.

Duchscherer, an All-Star in 2005, had been sidelined since May 15 because of soreness in his arthritic right hip that didn’t get better with rest and rehabilitation. Duchscherer was called back from a minor league rehab assignment in late May when the injury flared up again and called off a throwing session Sunday.

With closer Huston Street and setup man Kiko Calero also spending time on the disabled list this season, Oakland’s bullpen has been short-handed.

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Anthony Reyes, who has lost 12 straight regular-season decisions, was optioned to the minors by the St. Louis Cardinals to make room for Braden Looper in the rotation.

Reyes is 0-10 this season and hasn’t won a regular-season game since last Sept. 6.

Looper was activated from the 15-day disabled list. He was 6-6 with a 4.66 ERA in his first year as a starter before being disabled on June 16.

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Left-hander Oliver Perez was put on the 15-day disabled list by the New York Mets, a move retroactive to June 27.

“He has some soreness in his lower back, but nothing wrong with his arm,” Manager Willie Randolph said.

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Pittsburgh Pirates left-hander Zach Duke was told he doesn’t have structural damage in his sore pitching elbow, and will seek a second opinion this week.

Duke was told he has irritation in his ulnar collateral ligament that can be cured by rest.

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Washington Nationals starter Micah Bowie went on the disabled list because of a hip injury and the team called up Tim Redding, who will become the 10th starter and 20th pitcher used by Washington this year.