The 32-year-old made his last start for the national team in their 5-0 friendly win over Malaysia on October 7, but Osieck has opted for Matthew Spiranovic in the centre of defence for both his side's World Cup qualifiers against Oman and their most recent outing against Thailand.
Ognenovski, who plays his club football for Korean outfit Seongnam, is unfazed by Osieck's decision to opt for 23-year-old Spiranovic, and said it is important to blood the next generation of players.
"He's got to give Spira a go. Me and Lucas (Neill) are 32 and 33 respectively," Ognenovski said.
"If injury comes along and Spira gets thrown into the deep end, especially in the next round (of World Cup qualifying), he might find it difficult.
"So I think he's just giving him some game time to make sure that he's ready and knows what to expect in the next round."
Ognenovski said he has all but given up on his dream of playing in Germany's Bundesliga, and said the prohibitive price tag his Korean club have put on him means he will likely serve out the remaining year on his contract.
"I don't think so," Ognenovski said when quizzed about a possible move to Germany.
"Just because of the transfer fee that's on my head. None of the European clubs are paying.
"I've got a contract, there's a little bit of interest here and there but there's nothing concrete so at the moment it's just speculation."