Aroldis Chapman can't stop buckling batters' knees with his insane fastball

the joy of sox: 2021-07

Aroldis Chapman throws 101 MPH at Mike Brosseau's Head

Reds rally in the 10th inning, complete sweep of Astros with 9-7 win - Redleg Nation

Aroldis Chapman and the gnashing of teeth - Pinstripe Alley

Nolan Ryan Fastest Pitch

Photo Proves Getting Drilled in Ribs by Aroldis Chapman Fastball is the Most Painful Experience in Sports

Yankees' Chapman won't pitch in All-Star Game to rest knee

Reviews - GEORGE VECSEY

Why do most major league pitchers use the circle changeup instead of other changeups such as the palmball and vulcan changeup? - Quora

How Twins pitcher Louie Varland became a potential playoff weapon - The Athletic

Aroldis Chapman Throws 104 MPH + Luis Castillo INSANE NO-LOOK Catch! Tony Kemp WALK-OFF Hit! '23 MLB

Glossary of baseball terms - Wikipedia

Yankees' Aroldis Chapman throws first bullpen session since injury