 Nathan throws a mix of four pitches . His main pitch , a four @-@ seam fastball was once thrown in the mid @-@ to @-@ upper 90s , but now settles between 91 and 94 mph . His main breaking ball is a hard slider in the upper 80s , occasionally even touching 90 . He uses the slider less frequently against left @-@ handed hitters , preferring to use a curveball in the low 80s . He also uses a two @-@ seam fastball against lefties . His slider is his best swing @-@ and @-@ miss pitch , with a whiff rate of 42 % since 2007 . 
 Nathan <a href='uninflect' title='1'><mark>throws</mark></a> a mix of four pitches . His main pitch , a four @-@ seam fastball was once thrown in the mid @-@ to @-@ upper 90s , but now <a href='uninflect' title='2'><mark>settles</mark></a> between 91 and 94 mph . His main breaking ball <a href='drop_aux' title='3'><mark>is</mark></a>a hard slider in the upper 80s , occasionally even touching 90 . He <a href='uninflect' title='4'><mark>uses</mark></a> the slider less frequently against left @-@ handed hitters , preferring to use a curveball in the low 80s . He also <a href='uninflect' title='5'><mark>uses</mark></a> a two @-@ seam fastball against lefties . His slider <a href='drop_aux' title='6'><mark>is</mark></a>his best swing @-@ and @-@ miss pitch , with a whiff rate of 42 % since 2007 . 
Nathan throw a mix of 4 pitches . His main pitch , a fou4@ seam fastball was once thrown in the mid @-@ to @-@ upper 90s , but now settle between 91 and 94 mph . His main breaking ball a hard slider in the upper 80s , occasionally even touching 90 . He use the slider less frequently against left @-@ handed hitters , preferring to use a curveball in the low 80s . He also use a 2 @-@ seam fastball against lefties . His slider his best swing @-@ and @-@ miss pitch , with a whiff rate of 42 % since 2007 .