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Tennis, 2001 All England Lawn Tennis Championships, Wimbledon, 2nd July 2001, Mens Singles Fourth Round, Switzerland's Roger Federer urges himself on as he knocks top seed and defending champion Pete Sampras out of the tournament (Photo by Popperfoto via Getty Images/Getty Images)

Tennis, 2001 All England Lawn Tennis Championships, Wimbledon, 2nd July 2001, Mens Singles Fourth Round, Switzerland's Roger Federer urges himself on as he knocks top seed and defending champion Pete Sampras out of the tournament  (Photo by Popperfoto via Getty Images/Getty Images)