Flamethrowers: Aroldis Chapman headlines the hardest throwing pitchers in baseball – New York Daily News
Aroldis Chapman has velocity dip in opener
Aroldis Chapman, Carlos Zambrano, And Baseball At Extremes
Just How… Bad Is Aroldis Chapman? — YANKEES FILES
Aroldis Chapman's fastball is no longer special, Bronx Pinstripes
Aroldis Chapman, Carlos Zambrano, And Baseball At Extremes
Gerrit Cole and company have “broken” baseball through strikeouts - Pinstripe Alley
Concerned About Aroldis Chapman's Slowing Fastball? He Isn't - The New York Times
Aroldis Chapman's low velocity is a concern for everyone but the Yankee closer – New York Daily News
Yankees' Aroldis Champan shows concerning drop in velocity
Aroldis Chapman's Four-Seam Velocity Has Been Key To Early Success With Royals – The Royals Reporter
Yankees' Aroldis Champan shows concerning drop in velocity