Curt Hasler

Curtis Allan Hasler (born December 29, 1964) is an American professional baseball coach and former pitcher. On October 14, 2016, he was named the 2017 bullpen coach for the Chicago White Sox of Major League Baseball. In 1992, he became a pitching coach at the Rookie level in the White Sox' system, and continued in that role until he became roving minor league pitching coordinator from 2011–16. The 2017 season marks his 30th year in the Chicago organization and his first in the Major Leagues as bullpen coach on the staff of Rick Renteria.

Curt Hasler

Curtis Allan Hasler (born December 29, 1964) is an American professional baseball coach and former pitcher. On October 14, 2016, he was named the 2017 bullpen coach for the Chicago White Sox of Major League Baseball. In 1992, he became a pitching coach at the Rookie level in the White Sox' system, and continued in that role until he became roving minor league pitching coordinator from 2011–16. The 2017 season marks his 30th year in the Chicago organization and his first in the Major Leagues as bullpen coach on the staff of Rick Renteria.