If you’re looking for a lesser-known player for whom to root at this week’s U.S. Open, Chase Johnson isn’t a bad option.

The Mubadala Citi DC Open, the world’s only combined ATP-WTA 500-level tennis tournament, has added three Grand Slam champions.

U.S. Open opponents Taylor Townsend and Jelena Ostapenko got into a face-to-face argument on the Court 11 sideline right ...

Tennis apparel sponsorship is a big business. It is also one that, among the top players, is dominated by a small group of industry titans.