Bivol vs. Smith Is Finally Official: December 12 in Russia, Three Belts on the Line

The worst-kept secret in the light heavyweight division is finally a poster. Dmitry Bivol will defend his WBA, IBF and WBO titles against Callum Smith on December 12 at the UMMC Arena in Yekaterinburg, Russia, it was officially confirmed on Monday — BoxingScene reported the confirmation, with talkSPORT carrying the announcement details: a Matchroom Boxing and RCC Boxing co-promotion, broadcast live on DAZN. Per box.live, all three of Bivol's belts and The Ring championship will be at stake.

The two-month gap between deal and announcement was a sanctioning story. The camps reached terms in August, avoiding a purse bid, but the WBO's approval to stage the fight in Russia remained outstanding — and it was not a formality. The WBO declined to sanction Bivol's previous defence at the same arena in May, when only the WBA and IBF titles were contested against Michael Eifert and Bivol kept the WBO belt without defending it. This time, after what talkSPORT describes as just under two months of regulatory process, the green light came: all three belts appear on the official poster, and the division's biggest available fight is on.

A Challenger Who Has Waited Nearly Two Years

Callum Smith has been the man in waiting so long that waiting became his storyline. The 36-year-old from Liverpool won the WBO interim title by outpointing Joshua Buatsi in February 2025 on the Bivol–Beterbiev II bill in Riyadh — and has not fought since. By December 12 he will have been out of the ring for nearly 22 months, walking straight into the most complete technician in the division, in the champion's home country. Smith is a former WBA super middleweight champion bidding to become a two-weight world champion; his only previous shot at a full light heavyweight title ended in a stoppage loss to Artur Beterbiev in January 2024. This is almost certainly his last, best chance — and he has taken it on the hardest available terms.

Bivol's inactivity is its own subplot. The 35-year-old became undisputed champion by gaining revenge over Beterbiev in February 2025, then endured a 15-month layoff around back surgery before returning in May to outpoint Eifert at this same arena. The fights he wanted next — a Beterbiev trilogy, or David Benavidez, who has spent the autumn publicly accusing Bivol of avoiding big fights — are not the fight he got. He got his mandatory. And the queue behind Smith is already forming: per box.live, Ben Whittaker won the IBF final eliminator on October 3, putting another mandatory in line behind this one.

Why This One Matters

Strip away the sanctioning saga and the shape of December 12 is simple: the winner leaves Yekaterinburg holding three belts and The Ring title, and becomes the axis the whole 175-pound division rotates around in 2027. For Bivol, it is the defence that keeps the trilogy and the Benavidez fight alive. For Smith, it is the difference between a very good career with one great night in Jeddah a lifetime ago, and a two-weight championship legacy sealed in the lion's den. Fights with this much paperwork behind them usually disappoint in the ring. These two — a master boxer and a tall, heavy-handed challenger with nothing left to protect — have the styles to be the exception.

The fight is already on the Fight Hub calendar. Read the champion's record on Bivol's profile and the challenger's on Smith's profile — and Previously will carry the full fight-week build-up and the result wrap in December.