FourFourTwo first broke the story of a serious setback to the Socceroo's pre-season program almost two weeks ago.

At the time he had lost several kilograms and missed City's 2-1 FFA Cup win at Floreat Athena in Perth.

The virus has caused inflammation in the area surrounding his heart forcing him to stop training.

The 28-year-old is currently under the care and assessment of a specialist cardiologist who has advised that he will make a full recovery.

City's defensive ranks have already undergone a shake-up with former skipper, Patrick Kisnorbo, retiring and Socceroo Alex Wilkinson signing with Sydney FC.