Russian-born Canadian Artur Beterbiev was crowned boxing's undisputed light-heavyweight world champion after beating Russian rival Dmitry Bivol on a majority points decision in Saudi Arabia on Sunday.
Both were previously undefeated before the fight in Riyadh, with 33-year-old Bivol holding the WBA belt and Beterbiev, 39, the reigning WBC, WBO and IBF champion.
The headline clash at the Saudi capital's Kingdom Arena, postponed from June after Montreal-based Beterbiev suffered a knee injury, put the four recognised major belts in the hands of one man for the first time.
The last undisputed light-heavyweight champion was American Roy Jones Jr. who beat Reggie Johnson to unify the WBA, WBC and IBF belts in 1999.

Sabalenka overcomes holder Gauff to reach semis of WTA Finals
Argentina calls up Lionel Messi with Miami still in playoffs
Five-way tie at the top after Abu Dhabi HSBC Championship first round
India spin dominant T20 win over Australia
Rory McIlroy backs MENA Golf Tour as 'a really good thing' for region
