MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Boston Red Sox and Springfield-based life insurer, MassMutual partner up
Red Sox Winter Weekend
Red Sox pitching again can't keep the ball in the yard, bats can't make up the difference in a loss to the Pirates - The Boston Globe
Devers, Turner lead Boston's HR derby; Red Sox top Cubs 8-3 for 6th straight win
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
MassMutual is first jersey patch sponsor of the Red Sox
Mets-Red Sox rained out Friday, will play split-doubleheader Saturday
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro