MLB velocity, shifts set records; average lowest since 1968
MLB no-hitters: Six in 2021 season raises questions about feat - Sports Illustrated
Spring training start brings new rules — pitch clocks, shift limits - Seattle Sports
MLB: Pitchers who alter balls will get banned for 10 games
MLB velocity, shifts set records; average lowest since 1968, Ap
MLB 2023: New rules, big money Mets, Ohtani's walk year
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MLB players getting taste of new pitch clock during spring training - The Japan Times
Pitch Clocks and Ban on Shifts Could Affect MLB Roster Construction - The New York Times