"Kournikova was a member of the Russian delegation to the 1996 Olympic Games in Atlanta, Georgia. In 1997, as a 16-year old, she reached the semi-finals of Wimbledon, where she lost to the eventual champion, Martina Hingis by a score of 6-3, 6-2. 1998 was her breakthrough year, when she broke into the WTA's top 20 rankings for the first time and scored impressive victories over Martina Hingis, Lindsay Davenport, and Steffi Graf. Kournikova's two Grand Slam doubles titles came in 1999 and 2002, both at the Australian Open in the Women's Doubles event with partner Martina Hingis, with whom she played frequently starting in 1999."
I think anyone who can beat Hingis, Davenport, and Graf, plus win a couple of doubles Grand Slam titles is pretty fuggin' good - no matter what some non-achiever says.