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.
A pioneering strength and conditioning programme has been delivered to more than 8000 boys and girls at hub schools throughout Wales this season, helping to develop stronger, more flexible athletes for rugby and other sports.
The Singha Premiership Rugby 7s Series returns to the BT Sport Cardiff Arms Park on July 22nd when all four Welsh regions go head to head. Scarlets skills coach Dai Flanagan and Blues Elite Performance Pathway Manager Richard Hodges along with current Welsh squad members were at the launch of this season's event
GB7s women left their England base to train in Wales this week. Olympic Games hopeful Rachael Burford gives WRU TV's Graeme Gillespie her thoughts on Welsh teammate Jasmine Joyce - a 'one touch wonder'
The GB7s women's squad is currently training at Wales' Centre of Excellence where assistant coach Richie Pugh tells WRU TV's Graeme Gillespie some 'tough calls' will have to be made when it comes to finalising the 12 spots for Rio's Olympic Games.