Artur Beterbiev beat Dmitry Bivol by a majority decision to become the first undisputed light heavyweight champion in the division for more than 20 years.
The 39-year-old Beterbiev (21-0, 20 KOs) had won all 20 of his previous fights by knockout but was forced the distance by his fellow Russian rival in Riyadh in the early hours of Sunday morning in a fight that had several swings of momentum and was almost too close to call.
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