Dave Portnoy on X: That sweater though @celtics

Barstool Sports founder Dave Portnoy's life without sports: Purple sweatpants, day trading and 'The Office

Daniela Villaseñor-Bakes (@Danielavmtz) / X

Dave Portnoy CRAZY REACTION to Celtics Game Winner vs Heat (GAME 6)

Dean DeCarlo (@DeanDeCarlo1) / X

Glen Dowling (@Glen_Dowling) / X

Glen Dowling (@Glen_Dowling) / X

Dave Portnoy on X: Guys I am making a vow tonight. I will never let @ryanwhitney6 sit 2nd row at a @celtics game again. Not on my watch. Bad for the brand.

Dave Portnoy on X: How did I not know this existed. This is the best Xmas sweater we got. RIP Sweet Prince. / X

Blake Laino (@blake_laino) / X

A message from Dave Portnoy #celtics #boston #nba #basketball

Sophia Pollman (@SophiaPollman) / X

Dave Portnoy Joins NESN.com At Halftime Of Celtics-Cavs, LeBron James, Barstool Sports, David Portnoy, Boston Celtics

Dave Portnoy Reacts To Celtics Being Eliminated

Blake Laino (@blake_laino) / X