MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Mastrodonato: Red Sox failing to find momentum heading into Spring Training
For the first time, historic Boston Red Sox jersey will have a sponsor patch
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Natale sta arrivando: sei pronto?!? – NSWR
Ranking the top 10 prospects in the Red Sox system heading into the 2023 season - The Boston Globe
How one injury derailed the 2022 Boston Red Sox season
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News