Scott Quinnell is troulbled by the same knee that he hurt last summer in Australia and will miss Saturday's match against Scotland at the Millennium Stadium.
"It is the same knee, but it is a new injury," said Quinnell. "I just need a few weeks rest before the Heineken Cup semi-final for Llanelli against Leicester."
However, there was good news for Wales as Llanelli fly half Stephen Jones came through his club's Principality Cup quarter-final and also Cardiff centre Jamie Robinson was back in action in another quarter-final.
Both Robinson and his brother Nicky, along with Mark Taylor (Swansea) and Ian Gough (Newport) were in training with Wales over the weekend and Nathan Budgett (Bridgend) is hoping to be fit after limping off against LLanelli at half-time last Saturday.
Quinnell was the only one of the 22 players of the squad beaten by England at Twickenham who did not train.
Llandovery are aiming to make it three titles in a row in this year's Foster's National 7s being held at BT Sport Cardiff Arms Park on Sunday 28 August. Drovers assistant coach Simon Davies and Lee Rees assess their sides chances
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.