Former World No. 1 Kim Clijsters has announced that she is pregnant with her second child.
The Belgian retired from the sport at the US Open last September for the second and what she called the final time. Clijsters had also retired in 2007 and then came backin 2009 after the birth of her daughter Jada.
Clijsters won four singles grand slams during her career - three of which she won as a mother.
Her last season on tour - 2012 - was marred by a number of injuries.
Clijsters took to Twitter to announce the news to her fans and was immediately flooded with a number of congratulatory messages from fellow tennis pros and fans.