Oswalt, home runs power Astros over Giants

SAN FRANCISCO -- The Houston Astros received an All-Star effort from Roy Oswalt and he's hoping it could spark a run in the second half. Oswalt pitched eight strong innings in the Houston Astros' 7-1 victory over the San Francisco Giants on Sunday. "Any time you get three runs its a lot less stressful," Oswalt said. "We have Pittsburgh and Washington coming in, so hopefully we can get back to .500 and make a run for it like we usually do." Miguel Tejada, Hunter Pence and Jason Michaels each hit solo home runs for the Astros, who had been shut out in their previous two games against the Giants. Jeff Keppinger had three hits and drove in a run. "It's always nice to hit a home run when your team wins," Pence said. "So yeah, it was great." A three-time All-Star, Oswalt (5-4) gave up three hits, struck out six and walked one in improving to 3-1 with a 2.13 ERA over his last five starts. He also had a two-run single i...