The 34-year-old Russian avenged his only loss in his high-profile rematch to climb up the top 10. Plus, there's a new No. 1 atop the list.

Ahead of Artur Beterbiev and Dmitry Bivol's undisputed title rematch, here's a look at what happened in their first bout last October.

Dmitry Bivol has admitted Artur Beterbiev’s power felt exactly as he predicted. Bivol was the first one to tame the champion with ferocious fists, but unfortunately was on the wrong end of a

Artur Beterbiev puts his undisputed light-heavyweight championship on the line in a rematch with Dmitry Bivol just four months on from their first meeting.

Bivol took the undisputed light-heavyweight belts from Beterbiev, after the latter won a narrow decision in their first fight

Beterbiev became undisputed champion with a majority decision win last October, ending a 20-fight knockout streak with the victory. Many in the sport felt Bivol had done enough to have his hand raised, and he managed to leave little doubt the second time around to snatch all four belts after 12 technical and thrilling rounds.

Dmitry Bivol's résumé is inarguably one of the best in boxing after his revenge win over Artur Beterbiev, but is he the pound-for-pound best of the best?

Dmitry Bivol beat Artur Beterbiev by majority decision Saturday to become the undisputed light heavyweight champion, claiming Beterbiev’s four championship belts and avenging his first career loss four months ago.