Regardless of the results of this week's year-end championships in Istanbul, there is no true world No. 1 in tennis this year.
The U.S. Open starts in a week, and world No. 1 Caroline Wozniacki is looking anything but the favorite.
The 18-year-old reached her first quarterfinal, perhaps giving a glimpse of the future of American women's tennis.
Dropping out of the rankings due to injuries in 2010, Sabine Lisicki has climbed back to No. 26 on the strength of a monster serve.
With older stars fading, the new Wimbledon champ makes a statement for the younger generation, just in the nick of time.