Washington Nationals
Although they have not thrown an MLB pitch in 2024, Víctor Arano threw 1,896 pitches that were tracked by the PITCHf/x system between 2017 and 2023, including pitches thrown in the MLB Regular Season and Spring Training. In 2023, they relied primarily on their Sinker (86mph), also mixing in a Slider (78mph).
In 2023, compared to other RHP:
Their sinker (take this with a grain of salt because they've only thrown 9 of them in 2023) is so slow that it is substantially gravitational, is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has slight armside run and has some natural sinking action. Their slider (take this with a grain of salt because they've only thrown 2 of them in 2023) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, is an extreme flyball pitch compared to other pitchers' sliders, has less than expected depth and has primarily 12-6 movement.