South Africa wing Bryan Habana has suffered a minor concussion in the win over New Zealand and could miss Saturday's clash with the Wallabies in Johannesburg.

Habana, the Springbok's leading try-scorer in 2005, had a medical examination after complaining of dizziness following the 21-20 victory over champions New Zealand in Rustenburg at the weekend.

Natal Sharks utility backs JP Pietersen and Brent Russell have joined the squad for their final Tri-nations match against Australia in Johannesburg on Saturday.

The uncapped Pietersen and Russell, who has played 23 tests, were two of the attacking linchpins in the Sharks side that narrowly missed out on making the Super 14 semi-finals.

Springbok coach Jake White has hinted he will experiment further at fullback, after Jaque Fourie played in the position against the All Blacks and contributed to a more expansive approach by the South Africans.

"I think Jaque performed satisfactorily but I know he prefers playing at centre because it is closer to the action," White was quoted on News24 Web site.

"Percy Montgomery will certainly be considered again but I feel we should rather continue our search for a successor.

"The fullback against the Wallabies does not necessarily have to come from the current Tri-nations squad. Maybe we'll call up someone from outside, maybe we stick with Jaque and maybe we have another option within the squad," White said.

South Africa and Australia name their teams on Wednesday.

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