Justine Henin (French pronunciation: ​[ʒystin ɛnɛ̃]; born 1 June 1982), between 2002 and 2007 Justine Hénin-Hardenne, is a Belgian former professional tennis player known for her all-court style of play and notably being one of the few female players to use a single-handed backhand. She spent a total of 117 weeks as the world No. 1 and was the year-end No. 1 in 2003, 2006 and 2007. Henin, coming from a country with limited success in men's or women's tennis, helped establish Belgium as a leading force in women's tennis with Kim Clijsters, and led the country to its first Fed Cup crown in 2001.