Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

The Boston Red Sox announced a major off-the-field partnership

Red Sox reveal first-ever uniform advertisements; MassMutual

MassMutual will be the first sponsor to have its logo on Red Sox

Red Sox, MassMutual Partner Up

Red Sox play ball with a new signature sponsor - BOStoday

Red Sox debut new uniform advertisements as part of 10-year deal

Boston Red Sox Announce MassMutual Patch on Jerseys Starting in

Boston Red Sox sign BetMGM as first betting sponsor

MassMutual, Red Sox announce multiyear partnership

Iconic Massachusetts Brands Unite: MassMutual Named Signature

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