Roy Oswalt has left the Phillies for personal reasons, the team announced Wednesday. There is no timetable for the right-hander's return. Oswalt threw three ineffective innings in a loss to the Diamondbacks Tuesday night. After the game, manager Charlie Manuel said Oswalt said nothing about being injured. Still, Manuel said, his ace right-hander "wasn't right." A source who was in attendance at Chase Field on Tuesday told ESPN.com's Jayson Stark that Oswalt was observed speaking on the phone in the dugout for a long time before the game, suggesting he received news before he pitched that may have precipitated his departure.