Phillies’ Corey Knebel has a ‘surprise’ pitch four years in the making. But he won’t tell you what it is.
The Phillies' new closer relies on a four-seam fastball and a curveball, but since 2018 has been toying around with a secretive third pitch.
New Phillies pitcher Corey Knebel pitches during spring training workouts on Thursday at BayCare Ballpark in Clearwater, Fla.Read moreJose F. Moreno/ Staff Photographer
