Get out your leather masks, Olympic Tennis, 'cuz you're about to get dominated by the Williams sisters!!
Oh, and Roger Federer. Him too.
Venus beat Sara Errani of Italy, 6-3, 6-1. Serena beat Urszula Radwanska of Poland, 6-2, 6-3.
They both went on, then, to beat Sorana Cirstea and Simona Halep of Romania 6-3, 6-2 in the doubles match!
Federer popped onto the court to beat Julien Benneteau of France 6-2, 6-2 in less than an hour.
Good luck in the next rounds!
[Image via AP Images.]