From visionary filmmaker Luca Guadagnino, “Challengers” stars Zendaya as Tashi Duncan, a former tennis prodigy-turned-coach and a force of nature who makes no apologies for her game on and off the court. Married to a champion on a losing streak (Mike Faist), Tashi’s strategy for her husband’s redemption takes a surprising turn when he must face off against the washed-up Patrick (Josh O’Connor)—his former best friend and Tashi’s former boyfriend. As their pasts and presents collide, and tensions run high, Tashi must ask herself, what will it cost to win?