Nikolai Valuev 7 November 2009, billed as "'David vs. Goliath"', Valuev faced off against former unified and lineal cruiserweight champion David Haye (22-1, 21 KOs) at the Arena Nürnberger Versicherung in Nuremberg. Valuev lost on points (114–114, 116–112, 116–112). Valuev announced his retirement from boxing in a Russian newspaper three days after the loss to Haye on 10 November 2009. In 2010, Valuev's doctor went on record saying that he is treating Valuev for "serious bone and joint problems". Valuev underwent two operations that required at least six months on the sidelines. Valuev confirmed in 2013 that medical advice was one of
Nikolai Valuev well as spread the ideals of sports into other areas. Nikolai Valuev Nikolai Sergeyevich Valuev (; born 21 August 1973) is a Russian politician and former professional boxer. In boxing, he competed from 1993 to 2009, and held the WBA heavyweight title twice between 2005 and 2009. Standing at a height of and a peak weight of , Valuev is best known for being the tallest and heaviest world champion in boxing history. Valuev was born on 21 August 1973, in Leningrad, Russian SFSR, Soviet Union (now Saint Petersburg, Russia). He is of ethnic Russian descent, but he also had