The referee sends Artur Beterbiev, left, to a corner as...

The referee sends Artur Beterbiev, left, to a corner as Callum Smith tries to get up during a boxing bout Saturday, Jan. 13, 2024, in Quebec City. Credit: AP/Patrice Laroche

QUEBEC CITY — Artur Beterbiev improved to 20-0 with his 20th knockout, stopping Callum Smith in the seventh round Saturday night to retain the WBC, WBO and IBF light heavyweight titles.

Fighting a week before his 39th birthday, the Russian-born Beterbiev hit Smith (29-2) with a hard right, followed by a flurry that sent the English challenger to the canvas. Beterbiev quickly floored Smith again, with trainer Buddy McGirt stepping in to stop the bout with a minute to go the round.

“Smith is a fighter that I respect a lot but in the third or fourth round, I knew I had him and it was only a matter of time,” Beterbiev said.

The fight was pushed back from August to allow Beterbiev to recover from a jaw infection.

Based in Montreal for more than a decade, Beterbiev is boxing's lone champion with a perfect knockout rate. He has made seven successful defenses at 175 pounds.

Beterbiev is working on a deal to fight fellow Russian Dmitry Bivol for the undisputed light heavyweight championship, likely in Saudi Arabia.

“Artur just finished 16 weeks of training and with Ramadan in March, I think he has earned a good rest,” trainer Marc Ramsey said.

Artur Beterbiev celebrates his win over Callum Smith during a...

Artur Beterbiev celebrates his win over Callum Smith during a light heavyweight boxing bout Saturday, Jan. 13, 2024, in Quebec City. Credit: AP/Patrice Laroche

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