It turns out the Oklahoma City Thunder's toughest matchup of the NBA Finals wasn't the Indiana Pacers -- it was the champagne bottles waiting for them during their championship celebration!!
Footage from the locker room caught a bunch of players learning on the fly how to pop the bubbly for the traditional champagne showers -- and with their roster having an average age of just over 24 years old, it might've been the first time for a few of them!!
Isaiah Hartenstein credited Alex Caruso for helping show the team how to do it properly .