Wallabies loosehead prop Benn Robinson has decided to postpone surgery on his damaged anterior cruciate knee ligament in a risky attempt to be included in coach Robbie Deans' World Cup squad.

Robinson injured the knee at training last week and it was assumed that his season, and dream of playing at the World Cup for his country, was over. However, he has decided to see whether the injury will respond to rehabilitation as it seems relatively stable.

The big front row forward visited the Wallabies training camp on Monday to discuss his torn anterior cruciate ligament and damaged meniscus with team doctor Warren McDonald and took a decision to skip surgery in a bid to keep the slim hope of his inclusion in the World Cup squad alive.

Deans was not incredibly positive about the star prop's prospects however, and described the decision as a 'low percentage' move.

"His knee is remarkably stable for an ACL injury so he's opted to give it a go. To put it in perspective, it's a low percentage success rate if we base it on history, so I wouldn't be jumping through hoops yet," the Wallaby boss told reporters at the team's base in Coogee.

Deans said that he had experience of a player taking part in a Test match with an ACL injury and it "had not been a great experience".

"He finished the job, so to speak," said Deans. "But that was in midfield so Robbo's going to have to park his sidestep for a while," he quipped.

Robinson, who was replaced in the squad by Pek Cowan, will join the Wallabies in Queensland before their final Tri-Nations Test against the All Blacks in Brisbane on August 27.

Deans said that while it was encouraging that Robinson was prepared to take this gamble, he was not getting his hopes too high as it would take an astounding effort for him to get back to an acceptable level of fitness.

"It's great he's decided to give it a go but we're not jumping over the moon yet because he's got a lot of work to do yet," Deans added.