Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
2023 MLB Uniform Tracker – March 2023 – SportsLogos.Net News
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SportsLogos.Net News – News and blog on new sports logos and uniforms, rumours, concepts, and history in baseball, basketball, hockey, football, soccer and NCAA at Chris Creamer's Sports Logos Page SportsLogos.Net
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Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
SportsLogos.Net News – News and blog on new sports logos and uniforms, rumours, concepts, and history in baseball, basketball, hockey, football, soccer and NCAA at Chris Creamer's Sports Logos Page SportsLogos.Net
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
all-star game – SportsLogos.Net News