Ahead of her first-round match in D.C., Venus Williams gave a little wave and twirl tutorial, and explained its unlikely origin story.

In a first-round clash between Top 40 players, Leylah Fernandez topped Maya Joint 6-3, 6-3 at the Mubadala Citi DC Open on Monday. In the second round, Fernandez will meet top seed and 2019 champion ...