The Wallabies endured a horror training run in preparation for Saturday night's world cup final rematch losing reserve Mark Gerrard and possibly Jeremy Paul.

Gerrard, named earlier to make his Test debut at Suncorp Stadium, tore his left hamstring and must now wait until the Tri-nations next month to gain his first cap.

ACT half-back Matt Henjak has been brought on to the bench to replace his unlucky 22-year-old Brumbies teammate, who had been scratched from the two Test series against Scotland with a thigh injury.

Paul will undergo scans in Brisbane after appearing to strain ligaments in his right knee during the evening training session at Ballymore.

NSW hooker Adam Freier has paced on stand-by.

Wallabies vice-captain Elton Flatley was also earlier ruled out of the Tri-Nations.

Flatley was expected to return to action from a broken forearm at the start of Australia's Tri-Nations campaign next month but X-rays have shown he won't be available until midway through the tournament.

Australian coach Eddie Jones, who selected Matt Giteau to return from a virus at inside centre for Saturday night's Test against England, ruled against a Wallabies return for Flatley before the final Tri-Nations game against South Africa on August 21.

Although Flatley believed he could play a belated part in the Tri-Nations, Jones stressed a cautious approach was needed for his two-time World Cup final goalkicking saviour.

"It's an indication of how much we value Elton," Jones said.

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