While captain George Gregan's form has been labelled indifferent by Wallaby coach Eddie Jones, South African mentor Jake White fears the veteran halfback will prove a point against his team on Saturday.

Gregan, Australia's most capped player with 112 Test appearances, has attracted intense, and at times, critical scrutiny after three straight Wallaby losses.

Even Jones, who is renowned for sticking up for his skipper, has questioned the 32-year-old halfback's form, though not his passion for the game.

"George's form has probably been a little bit indifferent, particularly the last game," Jones said after training in Sydney.

"But I still think he's got the passion for the game and certainly he's got to lead by example on Saturday night."

White, who named an unchanged side for Saturday's Subiaco Oval Tri-Nations encounter, said it was dangerous to write off Gregan.

"I think the bottom line is you can't take away what he's achieved," White said.

"He's played over 100 matches for his country, every scrumhalf video that's ever going to be made from now on in is going to have him in it.

"I think it's a bit harsh all this criticism.

"I'm almost sure he'll take his chance and that's what I'm dreading.

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