"We've had a good week training," he said. "We're pretty positive as a group, our heads aren't down, and we're really looking forward to Saturday. If we can get enough possession from set pieces I feel we can go on and build a great performance.

"Everyone wants to support a winning side, and let's hope we can get a result against Argentina that will lift the whole nation."

The two-match Invesco Perpetual Summer Series also sees Wales face Rugby World Cup hosts France on August 26th. Jenkins, who dubbed the matches as "ideal" preparation for rugby's showpiece tournament, says fans will see his strongest players line-up in the games.

The coach said he was also relishing the prospect of challenging two of the sides in the top five of the IRB rankings.

He said: "We believe we can put in a real performance in both the friendlies. Our strongest group of players will be playing over the next two games, and it's the first chance they've had to really come together as a unit.

"They are the ideal games for us; we are playing in front of our home fans, and going up against sides above us in the world rankings.

He added: "The Invesco Perpetual series will give us an idea of where we are, and what we need to improve before the Rugby World Cup."

Argentina: Federico Serra (San Isidro); Lucas Borges (Stade Français Paris), Martin Gaitan (Biarritz Olympique), Felipe Contepomi (Leinster), Ignacio Corleto (Stade Français Paris); Federico Todeschini (Montpellier), Agustin Pichot (Stade Français Paris, captain); Rodrigo Roncero (Stade Français Paris), Mario Ledesma (ASM Clermont Auvergne), Martin Scelzo (ASM Clermont Auvergne), Ignacio Fernandez Lobbe (Sale Sharks), Patricio Albacete (Toulouse), Juan Manuel Leguizamon (London Irish), Juan Fernandez Lobbe (Sale Sharks), Gonzalo Longo (ASM Clermont Auvergne)

Replacements: Alberto Vernet Basualdo (Asociacion Alumni), Santiago Gonzalez Bonorino (Capitolina), Rimas Alvarez (Perpignan), Martin Durand (Montpellier), Nicolas Vergallo (Jockey Club), Manuel Contepomi (Newman), Horacio Agulla (Hindu)

Wales: Kevin Morgan (Dragons): Dafydd James (Scarlets), Tom Shanklin (Blues), Gareth Thomas (Blues, Captain), Mark Jones (Scarlets); James Hook (Ospreys), Dwayne Peel (Scarlets); Duncan Jones (Ospreys), Matthew Rees (Scarlets), Adam Jones (Ospreys), Ian Gough (Ospreys), Alun Wyn Jones (Ospreys), Jonathan Thomas (Ospreys), Martyn Williams (Blues), Alix Popham (Scarlets)

Replacements: T Rhys Thomas (Blues), Gethin Jenkins (Blues), Will James (Gloucester), Colin Charvis (Dragons), Mike Phillips (Ospreys), Ceri Sweeney (Dragons), Jamie Robinson (Blues)