McLean consistently got spin rates of over 3,000 rpm with his hook, resulting in nasty movement and, of course, swings and misses. With his curveball, he achieved an impressive 80 percent whiff rate, with the Pirates missing four times on five swings against that specific pitch. He also excelled with his changeup, which also generated four empty swings. He got two with his sinker, one with his four-seamer, and one with his cutter, for a total of 12.
McLean's performance in his debut generated positive expectations for the team and fans.