Eric Donovan's bout with Zelfa Barrett on 14 August will be for the IBF Intercontinental title, meaning a victory could set up a tilt at a world crown.
Donovan is fighting on Matchroom Boxing’s Fight Camp – a series of outdoor events in Essex which started last Saturday.
The Kildare boxer told RTÉ Sport in June that there was a title lined up for the fight.
He said: "It's a world ranking title that we're going to box for.
"I'm just waiting for that to be announced, but that was part of the negotiations of agreeing to this fight, and to this contract.
"I'm a featherweight champion. This fight was offered to me at super-featherweight, which is not too far away from the weight that I campaign at.
"It is a step up, but I said I will step up as long as it's worthwhile for me. My manager said that they've promised a world-ranking title fight.
"That has already been confirmed, so we're just waiting on the details of that. Come through this fight and the sky is the limit."
Victory would give Donovan a lofty world ranking and could propel him towards an even bigger opportunity.
Joseph Diaz is the current IBF world title holder at super-featherweight.
