Boxer Oleksandr Usyk is the new world heavyweight champion of the four federations WBA, WBO, IBF and IBO.

The Ukrainian WBO challenger delivered a stunt on Saturday night by beating title holder and top favorite Anthony Joshua in London.

After an exciting fight over twelve rounds, which took place at the Tottenham Hotspur stadium, the 34-year-old Usyk was unanimously declared the winner by the jury on points: 117-112, 116-112, 115-113.

For Usyk it was his nineteenth victory as a professional boxer in as many matches.

However, it was only his third heavyweight fight.

He was previously the undisputed world cruiserweight champion.

Usyk won Olympic gold in heavyweight at the 2012 London Olympics.

For 31-year-old Briton Joshua it was his second loss in 26 professional matches.

He was heavier and taller and also had a longer 'reach' than his opponent, who, however, managed to keep himself standing thanks to his faster footwork and also distributed quite well.

Usyk was in tears after his sensational victory.

He is the third cruiserweight to win the world heavyweight title after Evander Holyfield and David Haye.

Joshua was barely approachable after his painful defeat.

He has contractually stipulated that he is entitled to a revenge match against Usyk in the foreseeable future.

The WBC heavyweight world title is still in the hands of Briton Tyson Fury.

He will defend his championship belt on October 9 in Las Vegas against American Deontay Wilder.