SAN FRANCISCO - With Ryan Vogelsong sidelined for the foreseeable future, the San Francisco Giants are facing more change and challenges for their struggling starting rotation.

The Giants placed Vogelsong on the 15-day disabled list Tuesday, a day after he broke his pitching hand on a swing, and prepared to be without their right-hander for up to two months after he underwent surgery.

Athletic trainer Dave Groeschner said the operation went well.

Vogelsong had five pins inserted in his hand during the procedure at Stanford. The expected recovery time is 6-8 weeks until Vogelsong is pitching again, but he likely would need a rehab assignment before re-joining the Giants.

"I'll be back, no question about that," said Vogelsong, who waited to greet his teammates after Monday's win, his right hand wrapped. "It stinks. It stinks because it had been so rough, to go out there and feel like my old self again."

The injury came as Vogelsong had pitched five scoreless innings against Washington for his first victory since April 11, snapping a six-start winless stretch.

The Giants may cover his spot in the rotation with right-handed reliever Chad Gaudin, who has starting experience, or lefty Mike Kickham.

Right-handed reliever Santiago Casilla also went on the disabled list because his troublesome right knee still isn't healed. Infielder-outfielder Brett Pill and righty Sandy Rosario were recalled from Triple-A Fresno.

Inside pitch

• Washington placed reliever Ryan Mattheus on the 15-day disabled list after he broke his right pitching hand punching a locker. The Nationals also recalled lefty Fernando Abad and right-hander Yunesky Maya to bolster their beleaguered bullpen. Mattheus allowed five runs in one inning of Washington's 13-4 loss to San Diego on Sunday.

• White Sox pitcher Chris Sale was scratched from today's start against Boston because of a mild tendinitis in his left shoulder. Hector Santiago will start instead. Chicago expects Sale to start against the Cubs on Tuesday. ... The White Sox said chairman Jerry Reinsdorf, 77, has recommended a family succession plan that includes selling its interest in the franchise "once he is no longer with us."

• Left-hander Neal Cotts, 33, is back in the major leagues for the first time since ligament replacement surgery four years ago. The Texas Rangers purchased the reliever's contract Tuesday from Triple-A Round Rock, where he was 3-1 with a 0.78 ERA in 15 games.

• Indians closer Chris Perez deactivated his Twitter account following two rough outings, and after receiving a slew of negative comments. ... The Indians have placed first baseman Nick Swisher on the paternity list after he and his wife welcomed their first child.

• Milwaukee Brewers left-hander Alan Williams has been suspended for 50 games under minor league baseball's drug program following a second positive test for a drug of abuse.