Boston Red Sox unveil new mascot: Tessie the Green Monster, little sister of Wally

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Wally The Green Monster & Tessie

A New Boston Red Sox Mascot Will Tag Along With Wally The Green Monster This Season

Boston Red Sox introduce Wally's little sister, Tessie

Wally The Green Monster & Tessie

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Meet Tessie!, Wally's little sister, Tessie, is coming to Boston! Meet her for the first time at Winter Weekend!, By Boston Red Sox

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