Justine Henin (French pronunciation:  [Zystin ene]; born 1 June 1982), between 2002 and 2007 Justine Henin-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 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. By the end of 2004's spring hard court season, Henin had built a 25-match Tier I win streak and 22-1 win-loss record, winning her first 16 matches.  At the start of the spring clay court season, Henin's health was adversely affected by infection with a strain of cytomegalovirus and an immune system problem. She often slept up to 18 hours a day but barely had the strength to brush her teeth, let alone play competitive tennis.  Although Henin decided to defend her French Open title and was seeded first in the tournament, she lost her second round match to a much lower-ranked player, Tathiana Garbin of Italy. At the time, the loss marked only the second time in 15 Grand Slam events that she had lost before the fourth round.  After months of layoff because of a virus, Henin returned to competition in August and won the women's singles gold medal at the Summer Olympics in Athens, defeating Amelie Mauresmo in the final 6-3, 6-3. Henin reached the gold medal match by defeating reigning French Open champion Anastasia Myskina in a semifinal 7-5, 5-7, 8-6 after having trailed 1-5 in the final set. Her medal ceremony was attended by fellow countryman and IOC president Jacques Rogge.  In September, she was unsuccessful in her defence of her US Open title, losing to Nadia Petrova in the fourth round. This defeat caused her to lose the world No. 1 ranking, which she had held for 45 non-consecutive weeks. She then withdrew from the ten remaining tournaments of the year in an effort to recover her health and improve her fitness.

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what else did she do that year