Britain’s Anthony Joshua will defend his IBF and WBA heavyweight world titles against Kubrat Pulev of Bulgaria on 28 October.
36-year-old Pulev is the mandatory challenger to the IBF title held by Joshua.
The bout will take place at Cardiff’s Principality Stadium, six months after 27-year-old Joshua stopped Waldimir Klitschko at Wembley.
Klitschko, who announced his retirement last month, delivered the only loss in Pulev’s career back in 2015 via KO.