 He earned a spot on the 40-man roster, however was optioned to Triple-A Nashville before being recalled in May and hitting his first major league home run off Carlos Mármol in a win against the Chicago Cubs on June 6, 2012, then was later optioned back to Nashville, but recalled in September.In April 2013, Green underwent left hip surgery and missed all of the 2013 season.He was outrighted off the Brewers roster on October 4, 2013, but rejoined the organization and played in the minors in 2014 (Huntsville and Nashville) and 2015 (Double-A Biloxi Shuckers).