Robert Sidoli is set to put his Cardiff debut on hold as he battles back from a pelvic problem.
Cardiff Blues' new signing is likely to miss the start of the Celtic League - which kicks off in less than two weeks' time - after undergoing surgery in May.
The exploratory operation revealed a major muscle tear in his groin dating back from the World Cup that forced him to miss most of the Six Nations and summer tour.
But he insists the rest will see him come back stronger than ever when he does take the field.
"I'm pretty confident that the operation has finally sorted out the problem and will mean that I can train properly for a big season," said the 2*-year-old.
"I'm seeing a specialist next week to see when I can start playing, but I'm already feeling better.
"I probably should have had the operation a lot earlier but there never seemed a good time. At least it's been sorted out now."
Cardiff have already lost Nathan Budgett, another capture from the Celtic Warriors, for six weeks after injuring his neck in last weeks' friendly against Worcester.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.