Boxer Nick Blackwell has been put in a coma after he was hurt during his fight with Chris Eubank Jr.
The former British middleweight champion was taken to hospital with a bleed to the brain following a title fight in London on Saturday night.
The referee stopped the fight in round 10 on the advice of a doctor who was concerned about a swelling over Blackwell’s left eye.
Soon after the fight ended, Blackwell was seen receiving medical attention on the floor of the ring in the Wembley Arena.
It comes nearly 25 years after Eubank Jr’s father Chris Eubank beat Michael Watson in a bout that left the then-middleweight champion in a coma.
During Saturday’s fight Eubank Snr was heard telling his son that “if he (the referee) doesn’t stop it and you keep beating him like this, he is getting hurt”.
British Boxing Board of Control general secretary Robert Smith told Sky Sports: “It is our understanding that Nick has a bleed on the brain and is under observation by hospital staff.
“We will just have to wait and see what the hospital says.”
Mr Smith said Blackwell is in an induced coma, which is normal procedure in this situation, and has not been operated on.
Several in the boxing world expressed concern for Blackwell.
Eubank Jr himself tweeted: “You put up a great fight tonight. Proved yourself a true warrior, wish you a quick recovery and a speedy return 2 the ring.”
Former world heavyweight champion Lennox Lewis posted: “Thoughts and prayers to @nickblackwell02 and his family at this time!”
And English flyweight champion Charlie Edwards wrote on Twitter: “Prayers go out for Nick Blackwell hope you pull through mate sad to hear this!”
Eubank Snr’s match with Watson sparked increased concern about boxing in the early 1990s, with some calling for the sport to be banned.
Watson spent 40 days in a coma before regaining consciousness and then had to undergo a year of intensive care and rehabilitation.
It took six more years before he could walk again.
He has since gone on to become a campaigner for better medical treatment for injured sports people.