Courtney Eaton, 17, was a national mini-moto champion
An 18-year-old man has been convicted of killing another teenager during a confrontation in Salford.
Stuart Fagan stabbed Courtney Eaton, 17, four times in Winton last year after getting into a drunken argument with his victim.
He was on trial for murder at Manchester Crown Court but was found guilty of manslaughter after insisting he did not intend to use the weapon.
Fagan, of James Henry Avenue, Ordsall, Salford, was remanded in custody.
He admitted carrying the knife for self protection and pleaded guilty to carrying an offensive weapon.
The court heard that Fagan drank nearly half a bottle of brandy before going out to buy cigarettes with his 14-year-old girlfriend, her two female friends, and his 13-year-old brother.
'Unaware' of stabbing
It was on New Lane that the group crossed paths with Courtney and his friends at about 2250 GMT on 5 September.
Mr Fagan told the court one of the four youths made a derogatory comment about his brother's weight before three of them squared up to him.
He claimed he pulled his folding knife out to "scare them away" and could not remember stabbing anyone.
However, the court heard that Courtney was stabbed in the buttocks, on his left side and twice in the stomach.
The jury at Manchester Crown Court found him guilty of manslaughter after a three-week trial and he will be sentenced on a date to be fixed.