PHOTOS: The best of the U.S. Open women's final

Serena Williams cemented her legacy as one of the greatest tennis players of all time Sunday, winning her third straight U.S. Open title, her sixth overall, and her 18th Grand Slam over her good friend Caroline Wozniacki. 

Here are some of the best photos from the match:

Williams tied Martina Navratilova (left) and Chris Evert (right) with her 18th career Grand Slam title. 

18.

Wozniacki: "To have 18 Grand Slam titles and still be the person she is is really something rare. I admire her on and off the court."

Williams didn't lose a set in the entire tournament; the most games she lost in a set was three.