The rise of racquet sports in the U.S. is real, and a new business called Ballers is looking to capitalize on the growth with the help of $20 million in backing from a group of athletes and investors highlighted by tennis legend Andre Agassi, NBA star Tyrese Maxey, and MLS goalkeeper Maarten Paes. Ballers, which describes itself as a “first-of-its-kind hospitality-driven social sports venue,” will open its first location next month at Philadelphia’s historic Turbine Hall—a sprawling 55,000-square-foot facility that used to be the largest power plant in the city. That location will feature six pickleball courts, three padel courts, two squash courts, a turf field, four golf simulators, and a putting green, among other amenities.