Australia's hopes of making the second round took a major hit when the Socceroos lost their opening match 4-0 to Germany in Durban last Sunday.

However, Rajevac, whose team defeated Serbia 1-0 in its first match and can all but seal its progression to the second round with a win in Saturday's match, is expecting a determined Australian performance.

"The Australian team is a very strong team," Rajevac said.

"Their performance against Germany did not show the real picture. They can do much better, can run better, so I expect them to be much better than the performance against Germany."

He believes the Australian players would have been stung by the result and the subsequent criticism they received, and knows it will be a very tough task to get the three points.

"For Australia, this is the last chance. So they will give their best. They are a very competitive nation and I am sure they will give off their best in the next match so we are ready for that," he said.

"For us this win is very important ... we need to prepare well and concentrate well."

Ghana has beaten Australia just once in six previous encounters and has scored just three goals in those matches.