Don Cooper

Donald James Cooper was an American former professional baseball pitcher who spent his career in Major League Baseball in parts of four seasons with the Minnesota Twins, Toronto Blue Jays and New York Yankees. He was the pitching coach for the Chicago White Sox from July 22, 2002, until the end of the 2020 season. Under his tutelage, both Mark Buehrle and Philip Humber pitched perfect games, Lucas Giolito pitched a no-hitter, and the White Sox won the 2005 World Series. On October 12, 2020, Cooper and the White Sox parted ways after 32 seasons with the organization at various levels.

Data Source : Wikipedia