AFL player Marley Williams admitted to police he was furious at the moment he broke a man's jaw in a one-punch attack outside a West Australian nightclub.
Williams, one of Collingwood's brightest young stars, is accused of putting 30-year-old Matthew Robertson in hospital after a confrontation outside an Albany nightspot in December 2012.
The 20-year-old Williams has denied an accusation of grievous bodily harm, which carries a possible jail term of ten years.
Mr Williams is claiming self-defence, saying moments earlier Mr Robertson and his two friends had assaulted him in the toilets of the club.
The recording of Williams' interview with police was played to the jury at Albany District Court, which showed Williams telling police how he had been "intimidated" by Mr Robertson and his friends before being attacked.
Being quizzed by Senior Constable James Knowlson, Williams said he was angry at being confronted and assaulted.
"I walked straight up to him and punched him in the face," Williams said.
"I got angry because of what happened in the toilets, went outside and hit the guy.
"I was not going to let them feel like they got the better of me."
Williams told police he had been drinking from noon on Boxing Day until the early hours of the following day, estimating he had consumed six vodka drinks.
Slurring his words slightly, he admitted to the officers that he hit Mr Robertson "fairly hard".
Dr Shahnawaz Khan, who was on duty at Albany hospital that night, confirmed he discovered a double fracture of the victim's jaw.
The court was also shown new CCTV footage from the night which clearly showed the eight seconds between Williams coming out of the club and landing the punch.
Doorman Patrick Cobb told the court his memory of the incident was an agitated Williams approaching the victim and his friends intent on trouble.
"He seemed very agitated as he was coming down. I knew there was going to be some trouble when he was outside," Mr Cobb said.
But Mr Cobb did admit some of his recollections - including one of the men raising their arms in a surrender motion - may have been wrong.
