Michael Kopech is getting used to his new relief role with the Chicago White Sox. Judging by his first Cactus League appearance, it looks like he’s going to be just fine. The talented right-hander worked a perfect fourth inning Tuesday against San Diego. It was his first game since he opted out of the pandemic-shortened season for a variety of reasons, including concerns about his mental health. The 24-year-old Kopech, one of baseball’s top pitching prospects, was a starter coming up through the minors and likely will return to Chicago’s rotation at some point. But he is expected to begin the year in the White Sox bullpen.