A teenager who attacked a 49-year-old father-of-four, causing him to hit his head and fall unconscious, has been sentenced to 12 months' detention.
Kuba-Kuba had a chance of being put forward for the 2012 Olympics
Michael Kuba-Kuba, 16, from Salford, in Greater Manchester, punched Phil Carroll after he tried to stop a group of youths throwing stones at his car.
Mr Carroll fell outside his house and suffered a blood clot on his brain.
The teenager was convicted in November by Salford magistrates, of assault causing grievous bodily harm.
On Thursday, District Judge Finestein lifted reporting restrictions which had prevented the publication of the teenager's name.
The court had been told the 16-year-old's punch was so powerful Mr Carroll fell and hit his head on the ground, causing the clot to form.
He was taken to hospital for treatment and underwent surgery in which part of his brain was removed before he fell into a deep coma.
Mr Carroll was discharged from hospital but still suffers the effects of the assault.
Phil Carroll underwent major surgery to remove a blood clot
In a statement read to the court by prosecutor John Perris he described how he had suffered muscle wastage, regular headaches, mood swings, poor hearing, no sense of smell or taste and cannot remember bringing up his four children.
He is waiting for an operation to fit a metal plate in the back of his head.
Defence solicitor Mike Rainford said the teenager excelled at school, was a keen sportsman and had a chance of being put forward for the 2012 Olympics.
"He is extremely ashamed of what he has done and he doesn't want to return back to live in this area," said Mr Rainford.
Sentencing Kuba-Kuba, who had denied the charge at Salford Magistrates' Court, Judge Finestein said: "I have to try to protect the public and show that the courts are concerned by this kind of activity, particularly when the injuries on Mr Carroll are so severe."
Speaking after the sentencing Det Ch Insp Geoff Wessell, of Greater Manchester Police, said: "I'm sure Phil and his family have found comfort in the support they received from the local community and the number of local people who came forward to offer information that allowed this investigation to progress."