	After going undrafted in 2009, Yates signed with the Tampa Bay Rays. In 2012, Yates reached the Double-A level with the Montgomery Biscuits, where he had a 2.65 ERA and 94 strikeouts in 68 innings over 50 games. Yates was a Triple-A All-Star in 2013, putting up a 1.90 ERA in 51 games for the Durham Bulls.