In 2002, she reached four WTA finals, winning two of them, and finished the year ranked world No. Her German Open victory, her first win at a Tier I tournament, was noteworthy as she beat Jennifer Capriati in a semifinal and Serena Williams in the final, the then No. She then lost to Venus Williams in the semifinals in straight sets.Henin also lost to Clijsters in the semifinals of the Proximus Diamond Games in Antwerp.At the Tier I Acura Classic in San Diego, the third-seeded Henin defeated the top-seeded Clijsters in the final.Two weeks later at the Tier I Rogers Cup in Toronto, she defeated Russia's Lina Krasnoroutskaya in the final. She won her first four matches against unseeded players before defeating seventh-seeded Anastasia Myskina in the quarterfinals and then defeated sixth-seeded Jennifer Capriati in the semifinals 4–6, 7–5, 7–6(4) in a match that lasted more than three hours and stretched to midnight.She won both her singles matches to help Belgium win the tie 5–0.She then played two tournaments during the North American summer hard court season before the US Open.In the semifinals, she lost to Amélie Mauresmo 6–7(2), 6–3, 3–6. Henin started 2004 by winning a warm-up tournament in Sydney and then the Australian Open in Melbourne, defeating Clijsters in three sets in the final.
In the final, Henin defeated Clijsters in straight sets.
By the end of the year, Henin was ranked 7th in singles, with three titles to her name. In the fourth round of the Australian Open in Melbourne, she defeated Lindsay Davenport 7–5, 5–7, 9–7.
Also that year, she reached the French Open women's doubles semifinals with Elena Tatarkova and helped Belgium win the 2001 Fed Cup. In a match lasting more than three hours, Henin overcame a 4–1 final set deficit, high temperatures, and muscle cramps to defeat Davenport for the first time in her career.
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. Henin's mother routinely took the young Henin across the border to France to watch the French Open.
Her father is José Henin, and mother, Françoise Rosière–a French and history teacher who died when Justine was 12 years old. When she was two, her family moved to a house in Rochefort, situated next to the local tennis club, where she played tennis for the first time.