FACTBOX: World number one Justine Henin

(Reuters) - Factbox on Belgium's Justine Henin, who announced her retirement with immediate effect on Wednesday.

* Born June 1, 1982 in Liege, Belgium.

* Turned professional in 1999, and captured 41 singles titles, including seven grand slams during her career.

* Won her debut WTA Tour event in Antwerp.

* Became first Belgian to reach a singles final at Wimbledon in 2001, where she was beaten by Venus Williams. Went on to become the first Belgian to win a grand slam title when she overwhelmed compatriot Kim Clijsters to win the 2003 French Open.

* Overcame Clijsters to win her second grand slam title at the U.S. Open in 2003 and then again in the 2004 Australian Open final.

* Won a gold medal in the 2004 Athens Olympics despite being plagued by an energy-sapping viral illness.

* Won the French Open in 2005 and 2006, only the fifth woman to win back-to-back Roland Garros titles in the professional era.

* Reached the final of all four grand slam tournaments in 2006, becoming the first player to achieve such a feat and reach the final of the end-of-season Championships since Steffi Graf in 1993.