WBC world heavyweight boxing champion Deontay Wilder will fight Britain's Tyson Fury on December 1 in the United States with the venue yet to be finalised.
Wilder and Fury agreed to the fight in August and both on the date of the bout on social media.
"The two best heavyweights competing against each other, the best fighting the best, giving the people what they want," the 32-year-old American Wilder said in a video posted on Twitter.
Former world champion Fury beat Francesco Pianeta on points in his second fight since making his comeback from a two and half year absence from the ring.
"I know you have got a big punch, I know you are unbeaten, I know you have got a big mouth, and I know you want to win, but you don't want it like I do," Fury, 30, said in a video.
Wilder and Fury, who boast unbeaten records, will start the promotional tour for the fight in London on October 1 before moving to New York and Los Angeles.
"I can't wait. It is going to be an exciting fight, an explosive fight, and one for the legacy," Wilder added.
"You've got the WBC heavyweight champion of the world versus the lineal champion. It is going to be a pleasure."