Kansas City Royals
Although he has not thrown an MLB pitch in 2018, Danny Duffy threw 13,789 pitches that were tracked by the PITCHf/x system between 2009 and 2017, including pitches thrown in the MLB Regular Season, the MLB Postseason, The World Baseball Classic, Spring Training and Fall/Winter Ball. In 2017, he relied primarily on his Fourseam Fastball (93mph), Slider (83mph) and Change (84mph), also mixing in a Sinker (93mph). He also rarely threw a Curve (75mph).
Basic description of 2017 pitches compared to other LHP:
His fourseam fastball has slightly above average velo, has slightly less natural movement than typical and has some added backspin. His slider has some two-plane movement. His change has a lot of backspin and is slightly firmer than usual. His sinker results in more flyballs compared to other pitchers' sinkers, has well above average velo, has less armside run than typical and has little sinking action compared to a true sinker. His curve is basically never swung at and missed compared to other pitchers' curves, is an extreme flyball pitch compared to other pitchers' curves, has a sharp downward bite and has slight glove-side movement.