Roy Keane: Micah Richards denies being pundit’s stooge or puppy

The court also heard from Mr Law, who was sat beneath the Sky Sports studio during the match and said Mr Keane was “very animated” and “angry” throughout the game.

“Mr Keane was puffing his cheeks out. He was right up against the glass. He was banging on the window,” he told the court.

“Mr Keane picked me out and started telling me to see him outside. He was pointing to doors in the box.”

Mr Law said he then went inside the stadium to go to the toilet and encountered Mr Keane who “collided into him”.

Prosecutor Simon Jones KC asked Mr Law: “Are you seriously saying that Roy Keane ran into the top of your head?”

Civil engineer Mr Law, who cried while being questioned, said: “I put my head down in a defensive manner to protect my face.”

He said he believed injuries to his face, seen in custody photos from the following day, were from “Mr Keane’s elbow”.

But Mr Jones said Law’s “ridiculous” defence had “changed dramatically” from a prepared statement he gave to police the day after the incident, which said he moved his head forward “in a pre-emptive strike” to defend himself from a “violent approach” by Mr Keane.

Asked about the apparent differences between his statements, Mr Law replied: “I’d had no sleep – I was guilty by media.

“It was the worst night of my life.”

The trial continues.