If you're a serious tennis player and you plan on playing three or four days a week, the Penn Championship tennis ball is an ...

Daniil Medvedev, ranked fifth in the world in men's tennis, had a tough go against an opponent ranked 418th in the first round of the Australian Open on Tuesday. The Russian—who, like others ...

Alexander Bublik allowed a ball boy to take over after struggling in a big defeat against American Aleksandar Kovacevic. The ...