Novak Djokovic looked tired. He looked pained. And at times, on Sunday night, he just looked old. Djokovic overcame all that and improved to 19-0 in the first round of the US Open, battling some leg ...

In a display of resilience and skill, Novak Djokovic commenced his US Open campaign with a hard-fought first-round victory against American teenager Learner Tien. Despite facing physical challenges, ...

In the high-stakes world of professional tennis, physical condition can often be the deciding factor between victory and defeat. Novak Djokovic, the 38-year-old Serbian tennis superstar, recently ...