At the invitation of Fiji strength and conditioning coach Paul McGregor, Ryles offered his expertise in tackling and wrestling techniques during a rigorous two-hour training session at WIN Stadium yesterday morning.

The strength of the Fijian forwards is the main question mark hanging over the team against a big French pack spearheaded by captain Jerome Guisset.

"Mary (McGregor) just asked me to help out with a little bit of the wrestling and that sort of stuff," Ryles said yesterday.

"What they lack in experience they really make up in willingness to work.

"They really have a crack and they've got really good attitudes and they want to learn as much as they can while they're around the NRL guys."

Bulldogs and Fijian centre Daryl Millard admitted there is a major focus in camp on containing France's forward muscle in Saturday's showdown in Wollongong.

Millard said Fijian second-rower Ashton Sims and the other NRL players have been working with rest of the squad to develop NRL tackling and holding techniques.

The majority of the Fijian squad have been playing in NSW country competitions, including Group Seven, this season.

"We've just been working for the last two weeks on things like wrestling and other things that NRL clubs do," Millard said yesterday.

"(France) are pretty solid up the middle - that's where we'll have to match them.

"If we can hold the ball and tackle, well, we've got a bit of skill in the team, so we've just got to hold on to the ball and grind our way through the match and we'll find ways to score some points."

With Ryles destined for French-based Super League club Catalans Dragons next month after nine seasons with St George Illawarra, the towering prop denied he had any inside knowledge about the French squad to offer to Fiji.

"Actually, I didn't realise they were playing France until I was asked to come down and help with training," Ryles said.

"So I'm not much help there."