Carl Frampton will fight Kiko Martinez on September 6 with the IBF super-bantamweight title on the line
The Belfast fighter saw off Martinez with a ninth-round stoppage in February last year to take the European strap.
Martinez has since recovered to win the IBF belt and will now defend it for a third time.
Frampton won his last clash - a WBC title eliminator with Hugo Cazares in April - his 18th win from as many career fights.
The venue for the Martinez clash is still to be announced.