Argentina captain Juan Martin Fernandez Lobbe has been ruled out of the Dove Men Series clash with Wales on November 16.
The 31-year-old flanker fractured his elbow during Toulon's Top14 defeat to Toulouse on Saturday and is set to be sidelined for up to three months.
"Against Toulouse on Saturday flanker Juan Martin Fernandez Lobbe suffered a fracture of the right elbow," read a Toulon statement.
"He will consult a Marseille professor for surgery. It is estimated he will be unavailable for two to three months."
Argentina also face England, Italy and Ireland during their European tour.
Meanwhile former Wales head coach Sir Graham Henry has left his role as technical advisor to Los Pumas.
The World Cup winning-coach has stepped down to focus on a similar role with Super Rugby side the Blues.
He is just the latest departure from the Pumas' coaching staff after Santiago Phelan quit his role in charge. Phelan had been at the helm for six years but will be replaced by Argentina B coach Daniel Hourcade.
Wales Women head coach Rowland Phillips tells WRU TV's Graeme Gillespie his side go into tomorrow's clash against England as underdogs, but he's confident the world champions won't have everything their own way at BT Sports Cardiff Arms Park.
Defence coach Shaun Edwards believes Saturday's clash against England - the 'form team in world rugby' - poses a huge challenge for his side but he is confident, with Wales beginning to show the defensive qualities displayed in the last two World Cups,
The start of the Six Nations on this week's Princpiality Welsh Rugby Union Podcast. Coach and captain Rob Howley and Alun Wyn Jones look forward to the Italy game with Jake Ball and Jonathan Davies. Coach Rowland Phillips, outside half Elinor Snowsill and full back Dyddgu Hywel talk about Wales Women, while coach Jason Strange and centre Ioan Nicholas preview the U20 game. And find out why Snowsill had to hide her skills - or most of them!
At the official launch of this season's RBS 6 Nations at a noisy location in London this morning, Wales captain Alun Wyn Jones reveals he is personally proud to be in the Wales team and is already looking forward to the opening clash against Italy which is a 'tough ask'.
It was a double celebration for Wales and Ospreys scrum-half Rhys Webb when he called at the home of Welsh rugby to help commemorate the first anniversary of Principality Stadium and his return to fitness this weekend ahead of the RBS 6 Nations.
Head coach Rowland Phillips and key front rower Carys Phillips look ahead to games against Spain and Ireland as Wales Women ramp up their preparations for the forthcoming Six Nations. The two warm-up games are a 'massive opportunity to refine the squad' according to the Welsh camp.
After bouncing back on Day Two in Wellington with a good win against Papua New Guinea, Wales Sevens were stopped in the Challenge Trophy semi-final by Australia. Head coach Gareth Williams gives his assessment of the day.
Wales may have seen their eight match unbeaten run in the Under 20 Six Nations ended by reigning world junior champions England, but head coach Jason Strange reckons his young side will be all the better if they can learn the lessons from their defeat.
One of the major success stories of the year: More passing, less kicking, more offloads, more turnovers, more line-breaks and consecutive phases, less scrums and lineouts - and increased distribution to the backs from both.
The introduction of girls-only, summer rugby has been so successful that 15 new teams have been set up at under 15, under 18 and senior level around Wales for the traditional season. The Pontypool-based Arrows are one of these, as WRU TV finds out.