The Phillies will be without Roy Oswalt for quite some time because of a back injury that he rushed back from the first time it sidelined him. He'll likely be out until August with a bulging disk. The right-hander, who shot down retirement rumors Saturday, has battled back trouble all season. "I was just worried because (the pain) was going a little bit farther down my leg," he said. "The symptoms I had in the past, it's always just been in my hip. For the last two or three weeks, it's gotten lower and lower down toward the knee." Oswalt believes he can return for the final two months of the season.