Luke Wilton says he is ready to rip up the script and cause an upset by defeating British bantamweight champion Lee Haskins in Bristol tonight.
Wilton had hoped he would be boxing for the Lonsdale belt but instead it will only be a ten rounder against the southpaw champion.
Wilton got the call from promoter Mick Hennessy for the fight with Haskins when the British title holder's original opponent Cobina Johnson failed a medical.
East Belfast man Wilton, 25, is a natural flyweight and has been the distance with British champion Kevin Satchell so he will be the clear underdog, despite having been in training for a fight next month.
Dad and manager Alan said they had no hesitation in taking the fight, despite the unusual circumstances.
Alan said: "I only sorted out the fight late on Thursday night and I was in Dublin at the time so I was travelling up the road at three in the morning and then we were on the flight to Bristol at eight.
"We know it's going to be tough but it's hard for fighters from here to get big fights on television.
"Luke's a tough kid and although he is a natural flyweight, he has boxed many times at bantam and even higher weights."
Former British flyweight title challenger Luke was right on the weight when the call came and believes that fortune could favour the brave.
Luke said: "I'm feeling great and ready to go, as soon as I was offered the fight I told my dad let's go for it.
"Of course he's the favourite but I have nothing to lose – there could be 10,000 people there supporting him but come fight time, it's just me and him and it's not going to make any difference to the result, I'm going to win.
"I'm glad of the opportunity and jumped at the chance to face Haskins. I'll show everyone who I am and what I'm all about. I've been training for my fight on March 21 anyway so I'm fit and ready to win."
Champion Haskins, though, is confident that he will simply be too strong for Wilton.
"In front of Bristol I feel like I can't be beaten," Haskins said.