Phillies right-hander Roy Halladay left his start against the Cubs on Monday night early because of heat exhaustion. Philadelphia team spokesman Greg Casterioto said Halladay "absolutely" expects to make his next start against San Diego on Sunday. Halladay doubled over and was visited by a trainer after Starlin Castro led off the fifth inning with a single. "He got a little dizzy," manager Charlie Manuel said. "We were a little concerned about dehydration, brought him in here and got (the Cubs') doctor and he was looking at him." Halladay had pitched at least six innings in each of his last 42 starts. That was the fifth-longest streak by a pitcher in the last 20 years. His last start of less than six innings, prior to Monday, was May 23, 2010 when he lasted 5 2/3 innings.