Billy Joe Saunders will defend his WBO world middleweight title against American Willie Monroe Jr on September 16.
The fight will take place at London's Copper Box Arena and will mark the second defence of Saunders' title.
The unbeaten 27-year-old won the belt by outpointing Andy Lee back in 2015 and the Hatfield fighter has since beaten Russian Artur Akavov in his sole title defence.
A southpaw like Saunders, Monroe Jr, from New York, comes into the contest with just two defeats on his record, including a stoppage loss to unified middleweight champion Gennady Golovkin back in 2015.
That defeat marks Monroe's only previous crack at world honours and the American has since earned decision victories over John Thompson and Gabriel Rosado.
