Padel in the U.S. is at a turning point. Clubs are opening across the country and players are filling courts at a rapid pace. But growth alone doesn’t guarantee staying power. The question now is whether the sport will stay confined to individual clubs or grow into a connected community that gives players at every level something bigger to be part of. Other racket sports have faced this same moment – the tension between club-level play and something larger that connects communities. Their...