Man convicted over one-punch assault

A 21-year-old Perth man has been found guilty of inflicting serious head injuries on another man with a single punch.

A District Court jury deliberated for about four hours before finding Aaron Arslanoski guilty of causing grievous bodily harm to Matthew Day at the Carine Glades Tavern in 2006.

Arslanoski denied punching Mr Day... his lawyer maintained that police had charged the wrong man and it may have been a bouncer that assaulted him.

Mr Day suffered life-threatening head injuries.

He told the court that he has an indentation in his head and still suffers headaches.

Arslanoski was remanded in custody and will be sentenced in June.