Djokovic jokes that he’s challenging Serena Williams to come back to tennis

Novak Djokovic, of Serbia, celebrates after defeating Learner Tien, of the United States, during the first-round of the U.S. Open tennis championships, Sunday, Aug. 24, 2025, in New York. Frank Franklin II/AP
NEW YORK (AP) — Novak Djokovic thinks he … [1492 chars]