Wallaby coach Eddie Jones has accused South African rugby authorities of conducting an orchestrated campaign of disruption ahead of Saturday's Tri-Nations Test in Johannesburg.

Jones pointed to the sub-standard field the Wallabies were forced to train on; the involvement of South African Rugby Football Union officials in the Ben Tune affair; and Springbok coach Rudolf Straeuli's continued criticism of the Australians.

The Wallabies are also expecting a hostile reception from the Ellis Park crowd, which has a record of throwing objects onto the playing area.

Australia must win the game at Ellis Park by 26 points and get a bonus point for scoring four tries if they are to pass the All Blacks on the table and retain the Tri-Nations trophy. The Springboks are under just as much pressure as they face the prospect of their first Tri-Nations whitewash.

Wallaby captain George Gregan will become the most capped halfback in history when he runs out for his 78th Test, while flanker Owen Finegan will win his 50th cap.

Jones said the behaviour of some South African officials and the late arrival of Tune after an anti-doping tribunal cleared him had provided added incentive for the Wallabies.

"Our training has been the best I can remember for a side in South Africa," Jones said. "We've been really sharp. There's been a number of distractions but I think they've helped, if anything, to harden our resolve to play well.

"It's funny how Tuney coming in late gave everyone a lift, the positive news about him and all this ongoing stuff in the papers, I think it's just helped the team sharpen its focus rather than anything else.

"The major priority is we want to win the Test match and then if we can score enough points well and good and we win the trophy. If not, we win the Test match and we've beaten South Africa at Ellis Park for the first time in 39 years which is an achievement in itself."