Detwiler has spent nine seasons in Major League Baseball (2007 through 2016), including seven with the Washington Nationals. He played his college ball at Missouri State University and was the sixth overall pick in the 2007 MLB Draft by Washington. Detwiler’s best season came in 2012, when he went 10-8 with a 3.40 ERA and 105 strikeouts, logging 164.1 innings over 33 appearances (27 starts) for the NL East-champion Nationals. The 6 foot 3 southpaw has appeared in 189 Major League games in his career, starting 89 of them, and made at least 30 appearances in a season three times. Detwiler spent the 2017 season in the minors with the Chicago Cubs and Oakland Athletics organizations and appeared in 19 games.