Dafydd Jones
BBC Sport Wales, Estadio San Juan del Bicentenario

Estadio San Juan del Bicentenario may not be one of Argentina's biggest rugby venues, but it has built a reputation for producing a loud atmosphere whenever the Pumas visit.

There are plenty of empty seats the 25,000 seater stadium but Wales know they'll have to overcome a passionate home crowd as well as a formidable Argentina side.

Image source, Huw Evans Picture Agency

Ellis Mee with a good win in the air when chasing a box kick.

Argentina are then penalised for offside and Costelow opts to kick towards the corner.

They were strong in this department last week against Fiji.

Wales start solidly, with Sam Costelow putting the ball in behind with a smart kick.

Argentina clear but have been denied a rousing start.

Anthems complete - the hosts an entertaining, if lengthy, affair complete with a mouth organ - and we are ready for the off.

Referee Paul Williams blows his whistle and Wales fly-half Sam Costelow gets us under way.

A pre-match win predictor had Argentina at 92%, can Wales cause an upset?

Gareth Griffiths
BBC Sport Wales at Estadio San Juan del Bicentenario

The crowd here in San Juan have just been treated to a rousing rendition of the Argentina national anthem.

It is not full here, though, at a ground that holds 25,000.

Dafydd Jones
BBC Sport Wales, Estadio San Juan del Bicentenario

Conditions should suit running rugby.

It's expected to stay dry throughout the afternoon with temperatures around 15°C at kick-off.

The sun is shining, although it will cool quickly once it begins to set.

Rhys Priestland
Wales international fly-half on S4C

Wales have to deal with the physicality of Argentina but the kicking game will be just as important.

The Argentina players are some of the best in the world in getting the ball back from contested kicks.

Wales will have to be just as good or if not better than Argentina tonight.

Sioned Harries
Former Wales captain on S4C

The one aspect Steve Tandy won't have been happy with last week was their tackling, they conceded too many metres to Fiji.

They were a fast team and they look to off-load when they get the opportunity, but that was no excuse.

The Argentinians are a lot more powerful so Wales cannot afford to fall off tackles like they did against Fiji.

Image source, Huw Evans Picture Agency

Louis Rees-Zammit made his international return off the bench for Wales against Argentina in Cardiff last year.

The wing is given the role of impact sub on the Test stage for the first time since that Principality Stadium defeat.

Ellis Mee gets the nod alongside Blair Murray and Josh Adams in the back three, and it is undoubtedly a big call.

Tandy pointed out that Rees-Zammit had a niggle before starting against Fiji and also stressed the travel demands for this fixture.

Nonetheless, it is a big decision that was debated by former Wales backs Jonathan Davies and Tom Shanklin on Scrum V podcast.

Read more about that here.

Ken Owens
Former Wales hooker on S4C

We've definitely seen an improvement with Wales over the season.

The way they got back into the game last week was great, the scrum was really strong as well.

The attacking set-pieces were also really effective and it gave Wales a great platform to get themselves back into the game.

Image source, BBC Sport

What are you expecting from Wales this evening? What would be a success as we approach a year with Steve Tandy in charge?

Use the yellow button on the page to send us your thoughts.

Image source, Huw Evans Picture Agency

Argentina will be awash with Messi 10 jerseys tomorrow for the World Cup quarter-final against Switzerland.

In Wales there is a fascinating battle to have that number on the back in international rugby.

Sam Costelow gets the gig tonight after Dan Edwards started in the wins against Italy and Fiji.

The Scarlets and Ospreys playmakers are the only specialists on tour with Joe Hawkins their cover, while Jarrod Evans will aim to force his way in after returning to Cardiff where Callum Sheedy will be a rival.

Costelow was excellent against Scotland in the Six Nations but suffered an injury that allowed Edwards to get back into the team.

Former Wales and Lions centre Jonathan Davies believes his former Scarlets team-mate is a good fit for the task in San Juan.

"You need to be able to diffuse the atmosphere and put them under pressure," he said on the Scrum V podcast.

"Sam is the more favourable out-side half to do that. Dan has played really well but Costy gives more control and helps play in the correct areas of the field.

"Dan is a natural ball player but Costy has a bit more experience and looks at the back field to see space and understands the arm wrestle, turning a team and frustrating them."

Tandy must be loving the duel.

Some nations have rung the changes after round one but Steve Tandy has opted to largely stick with the side that got the job done against Fiji.

Here's the head coach on his selection.

Image source, Huw Evans Picture Agency

Wales opt against sticking with a winning team after beating Fiji last weekend.

Louis Rees-Zammit drops to the bench with Ellis Mee coming in while Sam Costelow pulls the strings in place of Dan Edwards, who drops out of the 23.

There should be a terrific moment when Kane James comes off the bench to win his first cap.

The back-row forward has been rewarded for a superb breakthrough season with Prem runners-up Exeter.

Wales: Murray; Mee, James, Hawkins, Adams; Costelow, Tomos Williams; Carre, Lake (capt), Lewis, Carter, Beard, Botham, Morgan, Wainwright.

Replacements: Elias, N Smith, Warren, Teddy Williams, James, Hardy, Llewellyn, Rees-Zammit.

Image source, Getty Images

Argentina freshen up their side with five changes to their starting line-up with props Boris Wenger and Tomas Rapetti, flanker Marcos Kremer, centre Justo Piccardo and wing Bautista Delguy coming in.

Lock Guido Petti will become the sixth Pumas player to win 100 caps.

A raft of household names in a formidable matchday squad, with inspirational hooker Julian Montoya leading from the front.

Argentina: S Carreras; Delguy, Cinti, Piccardo, M Carreras; Albornoz, Garcia; Wenger, Montoya (capt), Rapetti, Petti, Alemanno, Grondona, Kremer, Oviedo.

Replacements: Ruiz, Vivas, Coria Marchetti, Molina, Matera, Benitez Cruz, Moroni, Ignacio.

Image source, Huw Evans Picture Agency

Don't worry about events in Miami just yet, there are still 80 minutes left of another bumper day of Test rugby.

The sixth and final game of round two in the Nations Championship takes place in San Juan.

Can Wales make it three Test successes in a row? Will Argentina bounce back from a shock home loss to Scotland?

It promises to be a fascinating fixture, so let's have a look at the teams