Aroldis Chapman has thrown twice as many 100-mph fastballs as the

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Doing the math on Aroldis Chapman's fastball

Inside the Yankees' Aroldis Chapman problem

Is fastball mania putting young baseball arms on the brink?

Is Aroldis Chapman evolving?, Bronx Pinstripes

What is the fastest pitch ever? History of fastest pitches in MLB

Aroldis Chapman, Without His Command

Reign of fire: Yankees' Aroldis Chapman (and everyone else) is

After hit, Aroldis Chapman's heater at its hottest

Aroldis Chapman Pitch Hit a Batter and Left a Disturbing Bruise