A teenager has admitted leaving a stranger fighting for his life after stabbing him in the groin in Pentonville Road.

Islington Gazette: The knife used in the stabbing.The knife used in the stabbing. (Image: Archant)

The boy, 17, squared up to a man outside a fast-food joint in the early hours of February 15. They exchanged words and the teen then pulled out a large combat knife and attacked the victim, severing his artery and leaving him needing life-saving surgery in hospital. The man, 27, has since had four operations, suffered life-changing injuries and almost lost his leg.

The defendant, who cannot be named for legal reasons, pleaded guilty to GBH with intent and possession of an offensive weapon at Blackfriars Crown Court on Thursday. He will be sentenced on July 21.

Det Con Steffan Evans said the stabbing was over a “trivial” argument.

He said: “It was only the rapid intervention of paramedics that stopped this being a murder investigation.”