sentences:  He also has a four-seam fastball in the 91–93 range (tops out at 94–95 mph) and a circle changeup in the low 80s which is used mostly on left-handed hitters.He used to throw an occasional slider, but scrapped it prior to the 2013 season for a more effective upper-70s curveball.Porcello's former pitching coach Jeff Jones for the Tigers describes the curve as a "change of pace, something that he can throw as a first pitch to a left-handed hitter for a strike."