Answer
Pete Sampras, the reigning Wimbledon champion, fell to Richard Krajicek in the 1996 quarterfinals. Krajicek, a powerful server and volleyer, upset Sampras in a thrilling five-set match, 7-5, 7-6(3), 6-4, 6-7(3), 8-6. This marked the first time Sampras had lost a match at Wimbledon since 1991.