Emergency services were called to licensed premises on Main North Road around 5.45pm on Monday 25th April.
Police arrived at the scene to find a 47-year-old man from Craigmore had been viscously assaulted. He was rushed to RAH in a serious but stable condition.
The attacker fled the scene before Police arrived, nothing was found following their search of the immediate area.
Police believe this was not a random attack, and investigations continue.
Anyone with information that may assist the police investigation is asked to contact Crime Stoppers on 1800 333 000 or report online at www.crimestopperssa.com.au – you can remain anonymous.