MassMutual is first jersey patch sponsor of the Red Sox
Why MassMutual invested in a jersey sponsorship with the Red Sox
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MassMutual, Red Sox announce multiyear partnership
Boston Red Sox and Springfield-based life insurer, MassMutual partner up
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Red Sox, MassMutual Partner Up
Chris Cotillo on X: MassMutual is the new “signature partner” of the Red Sox. They get a jersey patch and the sign that replaces the John Hancock sign in center field. /
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox
Astros agree to deal to add Oxy jersey patch for 2023 season
Red Sox fans dismayed by their team's new sponsored jerseys
MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald
