Dave Allen is "doing well" after being taken to hospital as a precaution following his brutal heavyweight defeat against British rival David Price.
The pair battled it out on the undercard of Dillian Whyte's victory over Oscar Rivas at the O2 Arena but Allen's corner eventually threw in the towel at the end of the 10th round as Price inflicted the fifth defeat of his 22-fight career.
Allen left the Arena on a stretcher after he collapsed with his legs giving way and was subsequently taken to the Royal London Hospital as a precaution.
Sky Sports Box Office reported that trainer Darren Barker had told them the 27-year-old was doing well although he was still waiting for a scan at the time.
Allen has since tweeted to say this could effectively be his final fight due to his health "deteriorating" over the last 12 months.
Price (25-6, 20KOs) had dominated the fight from the very beginning with the Doncaster fighter taking far too much damage despite showing courage to continue.
After being pulled out by Barker, Allen was immediately given oxygen in the ring as Price calmed down his celebrations of a crucial victory.