MassMutual is first jersey patch sponsor of the Red Sox

Red Sox reveal 2023 uniform change

Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year –

Red Sox reach $170 million jersey-patch deal, Mets also interested

Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports

Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe

Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports

Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times

Kiké Hernandez isn't a fan of the Red Sox's new ad patch

Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports

A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options

Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox

Boston Red Sox mascots Wally and Tessie display the patch during a News Photo - Getty Images

MLB's Detroit Tigers expand Meijer sponsorship with jersey patch deal

Why MassMutual invested in a jersey sponsorship with the Red Sox

Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal