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11 Sep 1999: Serena Williams of the USA kisses her trophy after winning a match against Martina Hingis of Switzerland during the US Open at the USTA National Tennis Courts in Flushing Meadows, New York. Serena Williams defeated Martina Hingis 6-3, 7-6, 7-4. Mandatory Credit: Jamie Squire /Allsport

11 Sep 1999: Serena Williams of the USA kisses her trophy after winning a match against Martina Hingis of Switzerland during the US Open at the USTA National Tennis Courts in Flushing Meadows, New York. Serena Williams defeated Martina Hingis 6-3, 7-6, 7-4. Mandatory Credit: Jamie Squire  /Allsport