Switzerland's Roger Federer celebrates his upset victory over Pete Sampras of the U.S. at the Wimbledon Championships July 2, 2001. Federer defeated defending men's singles champion Sampras 7-6 5-7 6-4 6-7 7-5. ps Stock Photo - Alamy
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Switzerland's Roger Federer celebrates after taking a set off Pete Sampras of the U.S. during their fourth round match at the Wimbledon Championships July 2, 2001. PS/GB Stock Photo - Alamy
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Switzerland's Roger Federer celebrates his victory over USA's Pete Sampras during their Fourth Round match of the 2001 Lawn Tennis Championships at Wimbledon, London Stock Photo - Alamy
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Switzerland's Roger Federer plays a return to Britain's Tim Henman during their men's quarter finals match at the Wimbledon Championships July 4, 2001. ps Stock Photo - Alamy