Justin Verlander is retiring after 21 glorious seasons in MLB. With his departure, he’s leaving five rules that he hope Via @TheAthletic on X

What happened: Justin Verlander lines up for a final start Saturday to close his career. He proposes five rules centered on restoring workload and standing for starting pitchers.

Why it matters: Starting pitchers have shouldered lighter workloads as teams lean harder on bullpens. Verlander's exit removes one of the last full-workload-era arms, putting rotation construction back in focus entering the offseason.

By the numbers: 21 seasons; eighth on all-time strikeout list, four ahead of Scherzer entering the finale.

What to watch: Watch whether pitchers, clubs and the league pick up any of the five suggestions during the offseason.

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