Shane Greene leads the Major Leagues with a 0.39 ERA in 23 innings through three starts this season.
Greene, now with the Detroit Tigers, has been exceeding expectations since last summer with the New York Yankees. The Tigers acquired Greene from the Yankees in a three-team deal that also included the Arizona Diamondbacks this offseason.
He was an unheralded 15th-round pick in the 2009 First-Year Player Draft. He posted a 3.78 ERA and 9.3 strikeouts per nine over 78 2/3 innings as a rookie in 2014.