Although he has not thrown an MLB pitch in 2019, Rafael Soriano threw 7,268 pitches that were tracked by the PITCHf/x system between 2007 and 2015, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2015, he relied primarily on his Fourseam Fastball (91mph) and Slider (83mph), also mixing in a Sinker (92mph).
Basic description of 2015 pitches compared to other RHP:
His fourseam fastball is straight as an arrow, is an extreme flyball pitch compared to other pitchers' fourseamers, has some natural sinking action and has slightly below average velo. His slider is a prototypical pitch with few remarkable qualities. His sinker (take this with a grain of salt because he's only thrown 8 of them in 2015) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has surprisingly little armside run and has little sinking action compared to a true sinker.