ROY Keane has broken cover after a fan allegedly headbutted him during the Arsenal and Manchester United match.

The ex-Manchester United skipper, 52, was allegedly confronted inside the Emirates Stadium during the closing moments of the game yesterday.

Roy Keane stepped out with his two dogs this morning

The Manchester United legend used a black jumped to hide his face as he walked along the road

Keane was said to have been shaken by the incident during the match yesterday

Micah Richards stepped in and pinned a man against a wall

Keane broke cover this morning as he emerged for a walk with his two dogs.

The United legend, wearing a white t-shirt and baggy grey shorts, used a black jumper to cover his face as he walked along a residential road.

It comes after his Sky Sports colleague Micah Richards was seen pinning a man against a wall as footage of the altercation emerged last night.

According to reports, the event left both commentators shaken.

Witnesses have also described how Keane asked neighboring employees to contact the police.

Sun Sport has learned that Sky is currently stepping up security.

As the game came to an end, Keane and Richards made their way to the pitchside while waiting by a lift.

But after Alejandro Garnacho had a score disallowed for offside, both attempted to head back to the Sky studio.

The pair were eventually escorted away by security, where they were both able to give their post-match analysis for Sky.

Arsenal are cooperating with authorities with the investigation underway.

A club spokesperson added: “We are aware of an incident that took place during our match against Manchester United on Sunday.

“The Metropolitan Police is conducting an investigation into the matter and we are fully cooperating with their enquiries.”

A spokesperson for Sky Sports said: “We understand the police are investigating an alleged assault by a member of the public immediately preceding the footage circulating on social media.

“In the footage seen, Micah Richards was acting to defuse a situation.”

A Met Police spokesman confirmed the force has launched an investigation.

A statement read: “Police are investigating following an assault that is alleged to have occurred at the Emirates Stadium during an Arsenal v Manchester United match on Sunday, 3 September.

“There have been no arrests. Inquiries are ongoing.”

What we know:

• Roy Keane and Micah Richards involved in clash with a fan
• Incident took place in members-only bar as pundits made their way down to the pitch
• Pair then attempted to return to Sky studio to re-watch Garnacho’s disallowed goal
• The fan reportedly struck Keane on the chest and chin
• Richards stepped in and “pushed the fan back against the door”
• A witness recalled seeing “a small amount of blood on the floor”
• But fan was prevented from inflicted any serious damage
• Richards was “acting to defuse a situation”, Sky Sports spokesperson says
• Police confirm they are investigating alleged assault
• Arsenal are cooperating with authorities, club spokesman says

The two pundits have formed an unlikely bond, having played for fierce rivals Man City and Man United.

They regularly work on Sky’s Super Sunday programme and will likely be back on TV screens together after the international break on September 17.

The former United skipper has not spoken about the incident after footage emerged yesterday

Keane was flanked by his dogs as he headed out for a walk this morning

Footage of the altercation emerged on Sunday night

Keane did not reference the incident as he appeared on Sky a short time after

Roy Keane (right) and Micah Richards (left) were pundits for the clash between Arsenal and Manchester United alongside Theo Walcott