The Wallabies front-row stocks to face Fiji have taken a hit with key strike weapon Taniela Tupou under an injury cloud ahead of their crucial Rugby World Cup pool match in Saint-Etienne.

Tupou was one of Australia’s best in their tournament-opening win over Georgia in Paris but didn’t train with the team on Wednesday due to a hamstring complaint.

The Wallabies already have props James Slipper and Pone Fa’amausili in doubt with the pair missing the 35-15 victory over the Georgians.

Slipper has been sidelined with a foot issue and was in and out of their session, seen in the early stages doing some boxing drills.

Wallabies assistant Jason Ryles said Tupou hadn’t been ruled out just yet.

The 27-year-old was key to Australia’s dominance in the scrum against Georgia while he also set up a second-half try, racing down-field before throwing a looping pass for Ben Donaldson to score.

“Taniela is on the sideline at the moment, he has got a bit of a hamstring complaint but we’re just going to monitor him and just see how he goes over the next couple of days,” Ryles said.

“He didn’t train today but that’s not unusual for Taniela, don’t worry.”

With 131 caps, Slipper is by far the most experienced player in the Wallabies camp, lining up for his fourth World Cup

The 34-year-old loosehead was wearing a moon boot in France as he tried to overcome a tendon injury in his foot while tighthead Fa’amausili has been battling a calf issue.

“Slips (Slipper) has been managed at this stage,” said Ryles.

“I think he’s certainly in the picture but we’re not exactly sure how that’s going to pan out, whether it’s this week or next week.

“Himself and Pone have been doing a lot of stuff off field and then dropping into training at different stages with what their injuries allow them to and what the medical team allow them.”

With Australia taking on fellow big guns Wales in their third game, which could decide who tops the pool, coach Eddie Jones wants to get game time into Slipper against Fiji but can’t afford to carry him on the bench if he’s not 100 per cent.

Ryles said they weren’t looking ahead to Wales, aware of the massive challenge posed by Fiji, who shocked England in their World Cup warm-up match.

“It’s very cliched but all we’ve got on our minds is this week and how best we can prepare for that,” the former Melbourne and Sydney Roosters NRL assistant coach said.

“We want to get our next couple of days right and play the best we can and we believe if we play near our best, then we’re going to be hard to beat,” he said.

SOURCE: AAP/PACNEWS