Russian Greco-Roman wrestler Alexander Karelin visiting school #512 of Ulyanovsk city. Alexander Karelin has won gold medals at the 1988, 1992, and 1996 Olympic Games. Nicknamed the `Russian Bear,` `Alexander the Great` and `The Experiment` (see below), he went undefeated in international competition (spanning from 1987 to 2000), until being upset in his last match by American Rulon Gardner in the gold-medal match at the Sydney Olympics.