Prizefighter returns later this month with former WBC bantamweight champion Wayne McCullough among the entrants.
Barry Hearn’s latest eight-man, one-night tournament will be at super-bantamweight and held at the York Hall in Bethnal Green, east London on Saturday, May 29.
Belfast-born McCullough, 39, who now lives in Las Vegas, USA, becomes the third former world champion to enter a Prizefighter event in the last few months.
He follows in the footsteps of ex-WBA light-welterweight champion Gavin Rees, who won Prizefighter at the same weight, and former WBO heavyweight champion Herbie Hide, an entrant in Cruiserweights II last week.
Matchroom Sport Managing Director Eddie Hearn was delighted McCullough had agreed to be in Prizefighter.
“Last time out Prizefighter Cruiserweights II was packed with drama when number 2 WBC ranked Herbie Hide failed in his bid to take the crown,” said Hearn.
“This time boxing legend Wayne McCullough joins the action as he looks to re-ignite himself into the boxing mainstream in the sport’s most popular event.”
A successful night in Prizefighter sees the winner claim the £32,000 top prize and can revitalise a fighter’s career.
Audley Harrison would have retired from boxing if he had not won Prizefighter Heavyweights III but won the event and is now European heavyweight champion.
McCullough, who won a silver medal at the Barcelona Olympics in 1992, also fought for world titles at super-bantamweight and featherweight.
Four quarter-finals, two semi-finals and a final take place in an action-packed three hours and the rest of the Prizefighter contenders will be announced shortly.
The York Hall is expected to be sold out and tickets are now on sale from Matchroom Sport on 01277 359900. Tickets cost £35 (unreserved), £60 (ringside) and £100 (VIP).
Once again, the whole show will broadcast live and in high definition on Sky Sports.