Wayne McCullough is continuing to recover from the effects of dehydration in Glasgow's Southern General Hospital.
The Ulsterman insists he did not collapse nor require a brain scan following his points defeat to Scott Harrison in a WBO featherweight title challenge in Glasgow on Saturday.
The 32-year-old's corner was criticised for not stopping the fight before the final bell.
But McCullough's wife and manager, Cheryl McCullough, said today: "My husband is a true warrior and once again proved that by fighting to the final bell".
A statement regarding the fighter's time in hospital was released today. It read: "Wayne did not collapse following his championship bout on Saturday night, nor did he slip into unconsciousness at any time.
"Doctors have assured Wayne that there are no neurological problems as a result of the 12-round bout and we categorically refute earlier media reports that a brain scan was required".
McCullough failed a brain scan three years ago and had his licence temporarily revoked by the British Boxing Board of Control.
Fight promoter Barney Eastwood today called on McCullough to retire.
PA