- Four-time winner Wozniacki ousted at New Haven
- Serena Williams named US Open top seed
- Top seed Halep ousted at New Haven tennis
- US men braced for more Grand Slam misery
- Running out of time in Grand Slam fame game
- Riske upsets Pennetta at New Haven tennis
- South Africa's Anderson battles through
- Davis Cup door ajar for Del Potro as captain quits
- Ukraine's Davis Cup tie with Belgium set for Estonia
- Garcia-Lopez and Nieminen advance at Winston-Salem
- Bouchard cruises into 2nd round in Open tune-up
- Recent US Open men's champions
- Supreme Serena targets 18th major at US Open
- Federer's five US Open titles
- Federer poised to step out of darkness in New York
- WTA New Haven results - 1st lead
- Nadal to miss US Open due to wrist injury
- Federer warms up for US Open with 80th ATP title
- Federer captures 80th career ATP title
- Serena wins first Cincinnati title for US Open boost
- Serena wins first Cincinnati title for key US Open boost
- Serena Williams wins first Cincinnati title
- Ferrer, Federer to clash in Cincinnati final
- Federer reaches Cincinnati final
- Ivanovic ousts Sharapova in three-set thriller
- Ivanovic beats Sharapova to reach final
- Ferrer brushes aside Benneteau, books Cincinnati final
- Ferrer reaches Cincinnati final
- Williams beats Wozniacki to reach Cincinnati final
- Serena beats Wozniacki to reach Cincinnati final
Li Na's ankle recovery slower than hoped
China's Li Na will miss an exhibition match in Hong Kong after an ankle injury she sustained in last month's Australian Open final failed to respond well enough to treatment, organisers said Wednesday.
The announcement comes weeks after the world number five also withdrew from the $2.3 million Qatar Open.
The 31-year-old twisted her ankle twice during her three-set loss to Victoria Azarenka in Melbourne just over one month ago and "has not responded enough to intense treatment", said a spokesman for the exhibition match.
Li was scheduled to face Denmark's Caroline Wozniacki at the BNP Paribas Showdown in Hong Kong on March 4.
She said: "Unfortunately, the ankle injury I had in the Australian Open final is still not ready for me to compete.
"I know I have some of the best fans who live in Hong Kong and I was looking forward to playing for them. I promise I will be back next year."
Fans will be anxious for Li to recover in time for the French Open in May, a tournament she won in 2011 to make her the first player from Asia to achieve a Grand Slam singles title.
World number four Agnieszka Radwanska, meanwhile, will take Li's place in Hong Kong.