Tyson Fury has been warned he “has everything to lose” by Sweden’s Otto Wallin as the 14 September bout between the pair was confirmed.
News of 30-year-old Fury’s Las Vegas contest with Wallin broke on 2 August.
The Briton is expected to face WBC world heavyweight champion Deontay Wilder in 2020 if he wins.
“I know I’m an underdog in this fight, but I’m ready for this opportunity and I’m going to grab it with both hands,” said Wallin, 28.
“Anybody can get beat and especially in the heavyweight division. I like the fact that I have everything to gain and Tyson has everything to lose.”