A knife victim fears he may have been attacked by the person said to have carried out recent stabbings nearby.
Boxer Michael Grant, 35, was targeted in Edmonton, North London, where five people have been slashed since Saturday.
He said his 2016 attacker was a tall, skinny black man in a hoodie, like the police description from the recent stabbings.
He said: “That face won’t come out of my brain.
"Every time I go to Edmonton I look out for him.”
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A man in his 30s arrested on Tuesday was in custody last night on suspicion of attempted murder.
Another held on Sunday on suspicion of GBH was released.
Police were still questioning a third man, in his 40s.
Chief Superintendent Helen Millichap said: “We are potentially looking at one individual perpetrator.”
