Roy Oswalt refused to go out to the mound and pitch another inning of relief for the Rangers on Sunday against the Royals. Oswalt pitched two scoreless innings but wouldn't go out for a third. "He said he couldn't go any further," Ron Washington said. "He said he had enough." Oswalt had thrown 30 pitches in the two innings and had made three appearances in a seven-day span. "To get any more, you have to ask (Oswalt)," Washington said.