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Watch Mark McGwire's Son Mason's 'NASTY' Highlights as Cubs Pitcher Trends After MLB's Video

Bleacher Report

Mark McGwire tormented opposing pitchers for years during his playing days. Now, his son is on the mound, making life difficult for batters.

By Andrew Peters

Published: Apr 20, 2026, 3:37 pm Added: Apr 20, 2026, 5:18 pm
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