Dave Portnoy didn’t hold back when he trolled ... The Barstool Sports founder, who is a Boston native and diehard Celtics fan, sported a T-shirt with Irving’s face, which featured a clown ...

Dave Portnoy couldn’t avoid taking a shot at the infamous Dragon Pizza during his One Bite Pizza Festival in Brooklyn on Saturday. A Portnoy fan appeared to bring a custom-made shirt of his wild ...