Do you recognise this man? (Credit: Metropolitan Police)
A 30-year-old man was punched and knocked to the ground in Ilford Lane shortly before 11.50am on Sunday, 4 July.
His attacker tried to steal his phone but was challenged by a member of the public and forced to return it before making off towards Barking.
Emergency services found the victim unconscious on the pavement and he was taken to hospital. He has since been released.
Anyone who can identify the man police would like to speak to is asked to contact them by calling 101 referencing CAD 3330/04JUL.
To remain anonymous, contact Crimestoppers on 0800 555 111.
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