Unified world heavyweight champ Oleksandr Usyk will defend his WBO, WBA Super and IBF belts against Daniel Dubois on August 26.

Usyk, 36, will take on his WBA mandatory challenger at the 24,000-capacity Tarczynski Arena in Wroclaw, Poland.

Brit Dubois, 25, holds the regular WBA belt and boasts a record of 18 wins from 19 fights, with his only loss coming against compatriot Joe Joyce in November 2020.

The Greenwich-born challenger, 25, said: "He is a great fighter and I do respect him but it's my time now. 

"I'm going to shock the world and show people how good Daniel Dubois really is."

Usyk has won all 20 of his professional fights and the bout against Dubois will be the second defence of his unified crown having dispatched Anthony Joshua in Saudi Arabia last August.

The Ukrainian said: "I am very glad we have the opportunity to organise my fight in Poland, where I won my first world title seven years ago."

Originally scheduled for August 12, the showdown was moved to accommodate Ukraine's Independence Day on August 24.

Usyk also praised Poland for taking in more than a million Ukrainians who have fled the country since Russia's invasion in February 2022.

He said: "I want to thank the Polish people who are helping Ukraine so sincerely.

"Hundreds of thousands of my compatriots have been hosted by this wonderful country.

"Therefore, I hope my fight will become one more opportunity for Ukrainians and people of Poland to unite and strengthen our friendship."