Tyson Fury will face unbeaten Swedish heavyweight Otto Wallin at the T-Mobile Arena in Las Vegas on September 14.
The Gypsy King has agreed terms with the 28-year-old, who was in the mix to face Anthony Joshua as a late replacement for Jarrell Miller on June 1.
Wallin, who has a perfect 20-0 record with 13 KOs, had a strong amateur career in Sweden and made his US debut against Nick Kisner in April.
After demolishing German prospect Tom Schwarz in June, Fury has opted for a similar type of opponent who is far from a household name in the second fight of his $100m ESPN deal.
The Manchester-born star set to be heavy favourite to come through his latest test unscathed to set up his rematch with Deontay Wilder in early 2020.