In 2021, the Chicago White Sox utilized right-hander Michael Kopech out of the bullpen, save for four starts, none of which surpassed five innings. He rewarded the Sox, pitching to a 3.50 ERA with a 2.97 FIP, 1.13 WHIP, 36.1 K% and 8.4 BB% across 69.1 IP. Kopech owns a fastball that averaged 97.3 MPH and placed in the 98th percentile for spin rate and also employs a slider that generated whiffs 36% of the time last season. The two pitches helped lead him to a 32.8 Whiff%, good for the 88th ...