A MAN who caused life-threatenening injuries to a teenager during a night out in Farnham has failed to persuade top judges to cut his sentence. Ricky Parratt, 21, of York Road, Aldershot, was sent to a young offender's institution for six years on September 14, 2007, at Guildford Crown Court for causing grievous bodily harm with intent. On Tuesday his legal team argued that was "manifestly excessive", in the light of his previous good character and the admissions he made. His brother, Danny Parratt, 23, from Farnham, was sentenced to indefinite imprisonment for public protection for causing GBH with intent on the same date as Ricky.  Ricky's lawyer, Stewart Patterson, told the Appeal Court: "All the indicators are that it was out of character for him to do this. "It is important to bear in mind that no weapon was used and there was no premeditation in what occurred." Mr Justice Silber said the events unfolded on April 24, 2006. Will Davies had been out celebrating his 17th birthday in a restaurant in Farnham, but on leaving was confronted by Danny Parratt. The judge said: "Ricky Parratt and his brother had been drinking with others in a pub next to the restaurant. There was an incident in the pub when Ricky had to restrain his brother. "When outside the pub, Danny and another youth approached a group, of which Will Davies was a member. Danny challenged them to a fight and offered to take them all on. "When it became clear that no one wanted to fight him, Danny punched one of the group on the nose. Mr Davies was knocked to the ground and kicked. "Danny was kicking so hard his shoe fell off and it was later found on a roof. "Ricky joined the group and appeared to join in with the kicking. "Mr Davies was dazed, and with his girlfriend, crossed the road. "At that point, Ricky crossed the road and delivered one punch to Mr Davies.' The court heard that the punch was so hard, it knocked Mr Davies unconscious. Mr Justice Silber said Mr Davies had suffered a fractured skull in the melee and a cut to the side of his head. The judge described his injuries as "life- threatenening" and have had a devastating effect." He dismissed Ricky's appeal, saying the court had a duty to deter those involved with "this level of street violence". He added: "In our view this was a vicious attack against an unarmed man.  "The mitigating factors are that there was just one punch, it was inflicted in the heat of the moment and there was no weapon. "There are also impressive references that have been put forward on behalf of Ricky. "He also did not deny he was responsible." However, the judge said his sentence fell within the appropriate bracket and would not be changed.