A teenager is fighting for his life after being stabbed in broad daylight on a busy street.
Two youths clad in black were seen sitting on an e-bike cornering the victim near a shop.
The one on the back got off, pulled out a large knife and started grappling with the 17-year-old.
The victim managed to wriggle free, but the fight continued in a park over the road.
He was then stabbed on Green Wrythe Lane, Carshalton, south London.

It happened yesterday (30 Jan) at 11:30am, with the horror attack filmed by a witness in a van parked nearby.
Cops and paramedics were called and the victim was taken to hospital, as reported by Need To Know.
A Metropolitan Police spokesman said: “We were called at 11:30am on Thursday, 30 January to reports of a stabbing in Green Wrythe Lane, Carshalton.
“Officers, the London Ambulance Service and London’s Air Ambulance attended.
“A 17-year-old boy was taken to hospital with stab injuries. He remains there in a critical condition.
“Enquiries remain ongoing.
“Officers are appealing to anyone with information to call 101 and quote CAD 2789/30Jan.
“You can also provide information anonymously to the independent charity Crimestoppers on 0800 555 111.”
A London Ambulance Service spokesperson said: “We were called at 11.29am on 30 January to reports of a stabbing on Green Wrythe Lane, Carshalton.
“We sent resources to the scene, including ambulance crews and a paramedic in a fast response car.
“We also dispatched London’s Air Ambulance.
“We treated a teenager at the scene and took him to hospital.”
Local Lauren Francis said: “When is the Government going to crack down on this?

“This is broad daylight with people going about their business, the youths actually don’t care about consequences.”
Another asked: “What is wrong with London?
“Every day stabbing.”
Jan Patterson said: “What a horrible evil world.

“Why just why do you need to do such horrific things?”
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