New York Mets
Although he has not thrown an MLB pitch in 2018, Jenrry Mejia threw 3,375 pitches that were tracked by the PITCHf/x system between 2009 and 2015, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2015, he relied primarily on his Cutter (93mph) and Slider (83mph). He also rarely threw a Change (88mph) and Curve (79mph).
Basic description of 2015 pitches compared to other RHP:
His cutter is thrown at a speed that's borderline unfair, results in more flyballs compared to other pitchers' cutters and has little cutting action. His slider is an extreme flyball pitch compared to other pitchers' sliders, generates more whiffs/swing compared to other pitchers' sliders and has some two-plane movement. His change (take this with a grain of salt because he's only thrown 5 of them in 2015) is much firmer than usual, has slight cut action, results in somewhat more flyballs compared to other pitchers' changeups and has some natural sink to it. His curve (take this with a grain of salt because he's only thrown 1 of them in 2015) generates an extremely high number of swings & misses compared to other pitchers' curves, results in more flyballs compared to other pitchers' curves, has a sharp downward bite and has slight glove-side movement.