Police are looking for an attacker who left his victim needing “extensive plastic surgery” to repair a wound to his hand.
The Met has released an image of a man that they want to speak to in relation to the incident on the evening of Saturday October 1 last year under the Green Man Roundabout in Leytonstone.
The perpetrator approached the victim from behind and a tussle took place for his phone, resulting in his hand being slashed and his phone taken.
The victim, in his mid-30s, made his way home and was taken to hospital by a neighbour. Police said he “required extensive plastic surgery”.
Police described the attacker as a white male, with dark coloured curly hair and of athletic build.
Detective Constable Aaron Barnes-Weston, of the North East Command Unit, said: "As a result of this incident a man, who was only walking home, has been attacked and robbed. The injuries to his hand were so significant and so deep they cut his tendons.
“We need to find the person responsible and I am asking the public to help. If you want, you can call Crimestoppers who will never ask your name, but if you do have any information please do make that call."
Any witnesses or anyone with any information is asked to call police on 101 or contact via Twitter @MetCC. Please quote CAD 2453/12JAN.
To give information anonymously, contact Crimestoppers on 0800 555 111.