Former US Open champion Kim Clijsters has given birth to a daughter, nine months after retiring from tennis.

Clijsters and her husband, American basketball player Brian Lynch, named the baby Jada, VRT television reported, citing a family spokesman.

The network said mother and baby were both fine.

The 24-year-old Clijsters retired in May, saying a string of injuries had led to fatigue, a lack of motivation and a decline in play.

She said she wanted to focus a new life with Lynch, who plays in the Belgian league.

Clijsters was Belgium's first tennis player to reach the No.1 ranking, holding it for 19 weeks in 2003.

She won her only Grand Slam title at the 2005 US Open, but Clijsters also won the 2002 and 2003 WTA Championships as part of her 34 career singles titles.

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