A man was left with life-changing injuries after his face was slashed with a knife while watching a football match in a busy pub.

On April 23 last year, a 33-year-old man was watching an Arsenal vs Manchester City football match at the Park Tavern pub in Tollington Park, Finsbury Park, at around 8.30pm.

He became involved in a brief argument with another man, who allegedly produced a knife and slashed the victim's face, leaving a deep laceration from his left cheek to his lip, police say.

He was taken to hospital by paramedics and though not life-threatening, the victim continues to receive treatment for his injury,

The suspect left before police arrived.

Following extensive enquiries, police have released an image and video of a man they want to speak to in connection with the assault.  

Det Con Danitza Iniesta, from the Metropolitan Police's local policing team in Islington, said: "The pub was busy with people who were watching the Arsenal vs Manchester City game that night.

"We believe the victim and suspect spoke a few times throughout the evening without issue, before this horrific act of violence unfolded.

"If you were there that evening, or you know the man pictured, I urge you to contact us immediately."

To share helpful information or material with police, call 101 or tweet @MetCC quoting CAD 6799/26Apr.

Alternatively, contact Crimestoppers on 0800 555 111.