The 18-year-old Bruins rookie will, fittingly, become part of Dunkin' Donuts' "Caught Cold" campaign, which finds an iced coffee drinker and gives that person a pair of Bruins tickets every Tuesday during the season.
"It doesn't get any bigger than Dunkin' Donuts in Boston. They're an institution and I'm honored to work with them," Seguin said.
Seguin added that it's already becoming part of his Boston experience.
"It's even become part of my pre-game ritual," he said. "I drink a Dunkin' coffee before every game."
Celtics star Ray Allen is also part of the "Caught Cold" campaign.