That means that after Charlie Morton and Ross Ohlendorf start games in Arizona, Jeff Locke, Brad Lincoln and James McDonald will pitch in the upcoming three-game series against the Reds at PNC Park. Morton and Ohlendorf will return for their final outings of the year in Milwaukee.
The only unknown, at this point, is who will pitch the Pirates' final game of the season. That Sept. 28 start against Milwaukee could go to Locke, Brian Burres or Aaron Thompson. Hurdle also didn't rule out a bullpen-by-committee approach to get through that game.
The decision to shut Karstens down is due entirely to his innings count. He has already thrown 156 1/3 innings, which is 33 2/3 more than he tossed in the Majors last year. Monday's outing was Karstens' fifth shot to notch win No. 10 this season. He has just one victory in his last nine starts.