Booth has 15 knockouts in his 40-fight career
Jason Booth's world title challenge against IBF super-bantamweight champion Steve Molitor has been rescheduled for 11 September.
The fight had been due to take place in Sunderland on 23 July but Molitor has a stress fracture to his left shin.
Nottingham fighter Booth, 32, said: "It's a disappointment, but on the flip side it gives me longer to prepare."
The July show will go ahead, with Stuart Hall defending his British bantamweight belt against Martin Power.
Olympic bronze medallist Tony Jeffries is also expected to fight for the eighth time as a pro on the undercard at Rainton Meadows.
Booth spent two years away from the ring between 2004 and 2006 during which time he fought a drink problem.
If Jason pulls this off after the car crash life he has had, it will give me more pleasure than seeing Lennox Lewis become world heavyweight champion
He returned to win the British super-bantamweight title having previously been a British champion at flyweight, as well the Commonwealth title-holder.
Booth, who has 35 wins to his name in his 40-fight career, said: "The world title fight is such a bonus for me and now I want to win it so much. I am so lucky to have the things I do in life now.
"I am happy with what I have achieved in boxing, but thanks to my trainer Tony Harris, manager Jimmy Gill and promoter Frank Maloney I have an opportunity to do better.
"If I hadn't had boxing, I'd be dead, the drink would have beaten me. I've got my kids now, they're my focus and I think I've just grown up.
"Jimmy knows which opponents I can beat and Maloney's been a big help. He's always liked me and he's given me opportunities."
Maloney added: "If Jason pulls this off after the car crash life he has had, it will give me more pleasure than seeing Lennox Lewis become world heavyweight champion."
Canadian title holder Molitor will be familiar to English boxing fans following his first world title win against Hartlepool scrapper Michael Hunter four years ago. He also beat Booth's brother Nicky in a Commonwealth title fight in 2002.