March 2, 1969
On April 17, 1993, he technically knocked out Alexander Miroshnichenko in three rounds, in Taraz (Zhambyl), Kazakhstan.
won the world title
On August 12, 2006, in Las Vegas, he defeated Hasim Rahman by technical knockout in three rounds and became the WBC heavyweight champion.
Lost His Title
After his second defense, on December 10, 2006, when he defeated Peter Okello by unanimous decision, in Russia, he retired and returned to dispute his scepter against then-champion Samuel Peter, on March 8, 2008 in Cancun, but was defeated. by TKO in six rounds.
On November 4, 2013, in Krasnodar, Russia, he defeated Danny Williams by unanimous decision in ten rounds.