Two people have been charged over separate alcohol-fuelled assaults in Sydney that have left two men in hospital.
A 34-year-old man underwent emergency surgery on Sunday after he was punched near a licensed premises in Haymarket in the inner city.
Emergency services were called to Goulburn St at 3am (AEDT) on Sunday to find a man with significant head injuries.
Witnesses told police that the man, a Brazilian national, was punched in the face and fell back and hit his head on the ground.
He has undergone emergency surgery at St Vincent's Hospital and is in a critical condition.
Police have charged a 33-year-old man with maliciously inflicting grievous bodily harm and actual bodily harm.
The man, from South Hurstville, was refused bail and will appear in Parramatta Bail Court on Sunday.
Police have also charged a 29-year-old man over a stabbing in Surry Hills on Saturday night.
Police were called to Elizabeth Street at 11.30pm (AEDT) and found a man lying on the footpath with stomach wounds.
A knife was found nearby.
The victim was taken to St Vincent's Hospital with stab wounds, internal injuries and fractures.
The alleged offender was charged with wound person with intent to cause grievous bodily harm.
He has been refused bail and will also appear in Parramatta Bail Court on Sunday.
Surry Hills Local Area Command Acting Commander Superintendent Allan Sicard said the incidents were fuelled by alcohol."If you are going to have a night out you cannot expect to drink to excess, pick a fight and get away with it," he told media on Sunday.