British super-featherweight champion Gary Buckland has had to cancel the first defence of his title against Paul Truscott in Newport on 26 November.
The 25-year-old Welshman suffered a rib muscle injury in sparring but Hatton Promotions hope to reschedule in the new year once Buckland is fit again.
Buckland took the title from Gary Sykes in September on an unanimous decision.
"It is a real shame, but we had no option but to scrap the card," said promoter Ricky Hatton.
"I am sorry for all those fans that were looking forward to Gary's first defence, but we will be back in the new year.
"There will be plenty of Hatton Promotions cards in south Wales in 2012 as we look to build a fan base for Gary and other upcoming fighters in the area.
"I just look forward to seeing Gary back in the ring defending his domestic title before moving on to European and world honours.
"We are still planning to stage a show on 26 November in another British town and hopefully that will be confirmed in the coming days."
Middlesbrough's Truscott will now box Dezzie Higginson over eight rounds at Oldham Leisure Centre on Saturday 12 November.
There was also bad news for Buckland's Welsh compatriot Lee Selby, who was set to face John Simpson in the first defence of his British and Commonwealth featherweight titles in London on 18 November.
Greenock's Simpson has been forced to withdraw after contracting a viral infection, with Martin Lindsay mooted as a possible replacement at a later date.