Phillies may have sponsored uniform patch this season
MassMutual is first jersey patch sponsor of the Red Sox
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in
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MassMutual, Red Sox announce multiyear partnership
MassMutual is first jersey patch sponsor of the Red Sox
Reds get $5M per year from Kroger for uniform patch - Redleg Nation
Iconic Massachusetts Brands Unite: MassMutual Named Signature
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Red Sox debut new uniform advertisements as part of 10-year deal