New York Mets
Although they have not thrown an MLB pitch in 2026, Casey Fossum threw 827 pitches that were tracked by the PITCHf/x system between 2007 and 2009, all of them occuring in the MLB Regular Season. In 2009, they relied primarily on their Slider (84mph) and Curve (76mph), also mixing in a Fourseam Fastball (89mph) and Sinker (89mph).
In 2009, compared to other LHP:
Their slider is basically never swung at and missed compared to other pitchers' sliders and results in more flyballs compared to other pitchers' sliders. Their curve (take this with a grain of salt because they've only thrown 15 of them in 2009) generates an extremely high number of swings & misses compared to other pitchers' curves, has sweeping glove-side movement, is an extreme flyball pitch compared to other pitchers' curves and has a sharp downward bite. Their fourseam fastball (take this with a grain of salt because they've only thrown 10 of them in 2009) generates an extremely high number of swings & misses compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers and has slightly below average velo. Their sinker (take this with a grain of salt because they've only thrown 9 of them in 2009) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers and has less armside run than typical.