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 18-year-old reached her first quarterfinal, perhaps giving a glimpse of the future of American women's tennis.
What's good for the heart is good for your game? Caroline Wozniacki and Rory McIlroy are the latest high-profile couple on the global sports landscape.
The world No. 1 had no trouble on court, but did not want to discuss the identity of her now coach.
The former No. 1 has hired a new coach and is working with a fitness trainer in hopes of moving back up the rankings.
Women's tennis lacks dominant players and compelling rivalries. Will someone take advantage and emerge as the new star?