 "Baseball America" rated him as having the Best Control in the Chicago White Sox system after the 2010 season.At the time of his promotion to the major leagues in 2011, he led all White Sox minor leaguers in ERA (2.69), strikeouts (132), and opponents' batting average (.227), and was 9-3.He was named an MiLB.com 2011 Cincinnati Reds Organization All Star.