BOSTON (CBS) – The mayors of Boston and Denver have announced a friendly wager on Sunday’s AFC Championship game.

If the Patriots win, Denver Mayor Michael Hancock will wear Mayor Marty Walsh’s Patriots jersey during a session of next week’s U.S. Conference of Mayors.

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He’ll also ship Mayor Marty Walsh some of Denver’s green chile as well as a hoodie, cap and handmade skis from Denver-based Icelantic Skis.

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If the Broncos win, Mayor Walsh will wear Mayor Hancock’s Denver jersey during the conference in Washington D.C.

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He’ll also send him five pounds of chocolate turtles from Phillips Candy House in Dorchester, and, in honor of Denver’s expanded library hours, Walsh will make a donation to Denver Public Libraries of inscribed books by Boston’s hometown authors.