Justine Henin (born June 1, 1982 inLiège) is aBelgian formerprofessionaltennis player and a World Number 1. She won sevenGrand Slam singles titles, including four (and three in a row) at theFrench Open. She is two-time runner up atWimbledon but never won the title. Hermental toughness and her one-handedbackhand are recognized by great tennis players. One of the greatest tennis player of all time,Billie Jean King has said that Justine is the best player of her generation. She was known asJustine Henin-Hardenne for a while, until she separated from her husband in 2007 and went back to hermaiden name of Justine Henin. She retired in 2008 but announced her comeback on 22 September after seeing the success of her compatriotKim Clijsters.