MassMutual will be the first sponsor to have its logo on Red Sox
MassMutual lands deal for patch on Red Sox uniforms; Springfield company's deal with $17M yearly (report)
John Hancock ending long-held Boston Red Sox sponsorship
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
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MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
MassMutual is first jersey patch sponsor of the Red Sox
Brattleboro man honored at Red Sox EMS Night, Community News
Boston Red Sox and Springfield-based life insurer, MassMutual partner up
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
OTM Open Thread 12/5: It is Monday - Over the Monster