Ex-Reds centre-back Ognenovski has returned to the A-League after five years away with K-League side Seongnam Ilhwa Chunma and Umm-Salal of Qatar.
During that time the 34-year-old became a Socceroos regular under Holger Osieck, helping Australia to qualify for the FIFA World Cup.
He fell out of favour at Umm-Salal in recent months and has missed Australia's previous three friendlies, with his last appearance coming in the disastrous 6-0 defeat away to Brazil in September 2013.
"I've been training and I'm pretty fit but it's up to (coach) Frank (Farina)," the rugged defender said when asked about his chances of featuring against his old side at Allianz Stadium.
"If not this week then I'm right to play next week. I'm ready to go."
"I'm just looking forward to playing and trying to help the team reach their ambitions and goals," he said.
"Sydney FC are an ambitious club and a big club in Australia and I think the team, on their day, can beat anybody.
"Hopefully I can help bring some consistency to them and hopefully we can push forward."
