Roger Federer is known for playing points with ball kids. Sometimes he even loses the point against an especially skilled one. However, he probably hasn't lost a point such as this, played during the Match for Africa 5 charity event on Monday night in San Jose.

He was battling with Jack Sock when the American brought in one of the ball girls as a substitute. Normally, fans would expect lighthearted fun, but she was ready to dominate. A strong backhand sent Federer scrambling before she executed a perfect passing shot to win the point.

If this girl isn't thinking about joining the WTA someday, she probably should.