Bio

Aaron James Bummer (born September 21, 1993) is an American professional baseball pitcher for the Chicago White Sox of Major League Baseball (MLB). After signing with the White Sox, Bummer made his professional debut that same year with the Great Falls Voyagers where he compiled a 2.45 ERA in 22 innings pitched. He missed all of 2015 due to injury. In 2016, he pitched for the Arizona League White Sox, Great Falls, and Winston-Salem Dash where he was a combined 1–2 with a 4.86 ERA in 15 relief appearances between the two teams. He began 2017 with Winston-Salem, was promoted to the Birmingham Barons in May, and was promoted to the Charlotte Knights in July.