Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
John Hancock
John Hancock sign at Fenway Park coming down at end of season
John Hancock is ending its sponsorship of the Boston Marathon – Boston 25 News
John Hancock and Mass General Celebrate Boston Marathon Partnership
Chicago White Sox - Wikipedia
Boston University - Wikipedia
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
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After nearly 40 years, John Hancock to step back from sponsorship of Boston Marathon - The Boston Globe
Boston Marathon main sponsor John Hancock not renewing deal after 2023 - SportsPro