There are strong indications that Wallabies winger Rob Horne will be available for selection when Australia play against Scotland in the quarter-final on Sunday.
Horne had been grappling with a shoulder injury in the build-up to this fixture. However, he has since made an astonishing recovery and has even returned to training.
Horne, who is better known for his defensive capabilities, has taken part in contact drills at training this week and the verdict appears to be that he has acquitted himself with distinction thus far.
"He's back in training, we're trying to see if he'll be available for this week's game," said Cheika.
"He got into some contact [on Wednesday] and said he felt good, which is very positive because we probably didn't think he would. He'll jump in again on Friday and we'll make a decision from there."
There appears to be little doubt about the player's commitment to the cause this week, with there being suggestions that he has trained through the pain to gain the attention of selectors. If the final verdict is that he does not play this week, it does seem highly likely they he will compete if Australia qualify for the last four of the competition.
"Rob Horne is desperate to be selected, and he's prepared to go through the pain to do it. I think if he's not right this week he will definitely be right going further," explained Cheika.