Congress wants to cap international athletes at 20 percent of every college roster. In Division I tennis, nine in ten teams would be in violation, and homegrown options don’t measure up.

On vacation in Kosovo, a tennis detour gave Hanlon Walsh a front-row seat to one family's decades-long effort to forge a national tennis identity.

The thing about an AI ball machine is that it won’t pull punches like an obsequious pro who’s hoping for a bottle of scotch at Christmas; it will learn your weaknesses and it will tell you what they are. But the truth, after it hurts a little, makes you stronger.

Six weeks after the biggest win of her career, a freak injury at Roland Garros brought everything to a stop. At home in D.C., she is doing the quiet work of coming back.

The most successful (and idiosyncratic) Greek tennis player, fresh off an electrifying run at the US Open, visits New York's Greek enclave. Hijinks ensue.

Stretch fabric did more than make tennis clothes tighter. It changed how freely women could move, how secure they could feel, and how little they had to think about what they were wearing.

Nihi Sumba may be the most written-about resort on earth that not enough people have seen with their own eyes.

In our Issue No. 29 cover story, award-winning documentarian Zach Heinzerling reflects on capturing the real Rafael Nadal during the making of Emmy-nominated RAFA.