Neath-Swansea Ospreys utility Shane Williams is facing a fight to be fit ahead of Wales' final World Cup pool match against New Zealand in Sydney on Sunday.
The Test winger, who can also slot in at scrum-half, was expected to get a run in the eagerly awaited match but is battling the flu.
The news is further bad news for coach Steve Hansen, who lost OspreyS prop Duncan Jones with a fractured fibula during the Italy clash.
Wales won that match 27-15 to secure their place in the World Cup quarter-finals.
Better news for Hansen is that Gareth Thomas, Sonny Parker and Kevin Morgan, who all took knocks in the crucial match against Italy on Saturday, but are all expected to be available for selection this weekend.
Wales have not beaten New Zeland since 1953, but with the All Blacks have been short of competitive matches in this year's cup, giving rise to hope that this could be the hour of success.
Roger Lewis talks to WRU TV at the announcement of a new £60 million Rugby Services Agreement (RSA) which provides a new and positive contractual relationship between the WRU and its four Regions for the next six years has been agreed.
The Welsh Rugby Union has announced a major new sponsorship deal with Gullivers Sports Travel which will make the UK's leading, and longest established, multi-sport tour operator, an Official Supplier for the rest of the decade.
Having taken part in seven World Cups as a player and coach, Liza Burgess hopes to go out in style this afternoon when Wales take on Australia in the Play-off for seventh and eighth place in the Women's Rugby World Cup in Paris.
WRU Head of Rugby Josh Lewsey met with volunteers across the game earlier this week, championing their role in the sport. He was joined by Wales captain Sam Warburton for part of the day as volunteers took part in a 'Try Out' event for the 2015 Rugby World Cup
Wales Women may not have got the results they wanted recently on the field, but off it they have made massive strides in strength and conditioning - and that is in no small part due to S&C coach Sam Dodge.
Two weeks into the new pitch project at Millennium Stadium, Groundman Craig Campbell takes staff on a unique behind-the-scene tour of the works so far and National Squad Assistant Strength and Conditioning Coach John Ashby and Tour Guide Peter Owen describe what the revamp means for them.
Try-scorer Jenny Davies and fellow prop Megan York reveal to WRU TV's Graeme Gillespie their thoughts after Wales broke their drought in the Women's Rugby World Cup with a 35-3 win over South Africa in Paris.