By not making the roster move until after the series opener, the Pirates are able to stick with an eight-man bullpen for the next two days.
McCutchen began the season as the Pirates' fifth starter, but held on to that spot for just three starts (four total appearances) before being optioned back to Triple-A. None of McCutchen's three starts lasted more than four innings. In all, he allowed 18 earned runs on 19 hits in 12 innings. McCutchen walked seven and struck out seven.
Since joining the Triple-A rotation, McCutchen has gone 4-5 with a 3.86 ERA in 10 games. He has pitched seven innings in each of his last three starts and has a 2.73 ERA in four starts this month.
Saturday was already the right-hander's next scheduled day to pitch. With Zach Duke expected to miss at least two more starts with a flexor pronator strain, McCutchen would be in line to pitch again for Pittsburgh on July 1 if he fares well this weekend.