Primo Carnera, nicknamed the Ambling Alp, was an Italian professional boxer and wrestler who reigned as the boxing World Heavyweight Champion from 29 June 1933 to 14 June 1934. He won more fights by knockout than any other heavyweight champion in boxing history.

Nikolai Sergeyevich Valuev is a Russian politician and former professional boxer. He competed in boxing from 1993 to 2009, and held the WBA heavyweight title twice between 2005 and 2009. Standing at a height of 2.13 metres (7 ft) and a peak weight of 149 kilograms (328 lb), Valuev is best known for being the tallest and heaviest world champion in boxing history.