Nicola Adams is to make her debut in USA after being announced on the undercard for the Saul Alvarez v Gennady Golovkin bout in Las Vegas on 16 September.
The 34-year-old double Olympic champion will face Hungarian Alexandra Vlajk.
The Briton turned professional in January and beat Virginia Carcamo and Mexico's Maryan Salazar in her first two bouts.
Vlajk, 37, has won 11 of her 17 contests and stopped two opponents since turning professional in 2013.