Roy Halladay (shoulder) could rejoin the Phillies' rotation in late August if everything progresses on schedule. Halladay, who had surgery last week to remove a bone spur in his shoulder and repair his torn rotator cuff, reported to extended spring training Monday to begin his rehab. General manager Ruben Amaro said Doc has pretty good range of motion and is "pretty positive." Obviously late August is so far away that it's just a rough timetable, but, given Halladay's famous work ethic, it wouldn't be a surprise to see him pitching later this season.