Boston Red Sox mascot gets a little sister - Sports Illustrated

Goodnight Baseball by Michael Dahl, Christina E. Forshay, Paperback

About Tessie the Green Monster

Wally the Green Monster's little sister, Tessie, is shipping up to Boston

When Wally the Red Sox Mascot Vanished From Boston's Fenway Park

Say hello to Tessie, sister of Wally and newest Sox mascot

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

Covenant Care “My Wish” patient's son plays ball at Blue Wahoos Stadium

Cisco mascot gains 'All-American' status, fundraising to perform at Citrus Bowl

About Tessie the Green Monster

Tessie (Boston Red Sox), SportsMascots Wikia

A security guard and a mascot have a fierce dance-off. I have no idea what sports is being played, but I'll provide the source link in the comments : r/Damnthatsinteresting

Best MLB Mascots: Top 5 Baseball Characters, According To Fans - Study Finds

Red Sox mascots Wally and Tessie to skate with fans on Boston Common's Frog Pond

247 Becky Boston Stock Photos, High-Res Pictures, and Images - Getty Images

Binghamton Rumble Ponies Announces Name Of The New Mascot