The Unisex Champion Black Celtics Crossover Gaming On-Court 2K League Authentic Practice T-shirt is the perfect way to show your support for the Celtics Crossover Gaming. Made from soft cotton, this shirt features screen-printed graphics that will make you stand out from the crowd. Whether you're cheering on your team at a game or just hanging out at home, this shirt is sure to become a favorite. The Celtics Crossover Gaming is the official NBA 2K League affiliate of the Boston Celtics. The team competes in the NBA 2K League, a professional esports league that features the best NBA 2K players in the world. The Celtics Crossover Gaming has a strong tradition of success, having won the NBA 2K League championship in two thousand eighteen.