The pair then fled in a car driven by 22-year-old Dhanyal Hussain, who reversed down a one-way street in order to help them escape.
The spokesman said due to the extent of his injuries, Mr Gibbons remained in a coma for 12 days and “underwent extensive surgery, which resulted in half of his skull being removed to alleviate the pressure on his brain”.
He said the 20-year-old was left with “permanent scarring and went through months of rehabilitation to help him to learn to walk and talk again”.
In a victim impact statement read to the court, Mr Gibbons said the attack had destroyed his confidence and ruined his dream of racing a bike in the Isle of Man TT races.
He also said he had been left feeling self-conscious about his appearance.
Ali and Bhatti admitted causing grievous bodily harm and were both ordered to do 180 hours of unpaid work and take part in rehabilitation activity days.
Hussain, of Whalley Range, Blackburn, denied assisting an offender but was found guilty after a trial.
He was sentenced to two years in prison, suspended for two years and ordered to do 240 hours of unpaid work and take part in rehabilitation activity days.