Second change of the evening for Wales as Owen Watkin comes on for Nick Tompkins.

Argentina flanker Marcos Kremer is penalised on half way for not releasing the ball and Wales have another line-out in the Puma's half.

Argentina look to respond immediately and kick to the corner after a Welsh infringement at the ruck.

The Pumas forwards drive over the Welsh five-metre line before Adam Beard forces the turnover - much to the relief of the home crowd in Cardiff.

Gareth Anscombe's clearing kick does not make touch however and Argentina come again.

Changes in the Pumas front row as Thomas Gallo and Agustin Creevy make way for Ignacio Ruiz and Nahuel Tetaz Chaparro.

Cennydd Davies
Chwaraeon BBC Cymru

It's an unbelievably bad kick there from Mallia!

George North just landed a crunching tackle on Pumas flanker Tomas Lavanini - I felt that one from here.

Image source, Reuters

Wales prop Gareth Thomas spills a pass forward so Argentina will have the put in at the scrum, midway inside their own half.

Caryl James
Former Wales wing on BBC Radio Cymru

He was on his own there, so we're lucky Louis Rees-Zammit is so quick.

Louis Rees-Zammit is having more of the ball at full-back than he did against New Zealand last week.

The Gloucester man returns a clearing kick by the Pumas all the way back to their 10-metre line with blistering pace.

The crowd love to see it.

Caryl James
Former Wales wing on BBC Radio Cymru

We have to ensure that the defending continues to be solid and we are physical in the tackle, and also get a bit of shape going forward.

Louis Rees-Zammit does brilliantly to claim a high ball on half way.

Wales have the ball but they are on their own 10-metre line.

A slow start to this second half so far.

Gareth Anscombe gets us back under way.

Argentina collect the restart and clear up to halfway.

Here come the sides for the second half, a big 40 minutes ahead.

As my colleague Gareth Griffiths already alluded to, the Pumas burst out of the traps in the second half against England last week.

Wales can not allow them to do the same here.

Derwyn Jones
Former Wales lock on BBC Radio Cymru

Dan Lydiate is a defender of the highest level, he did a good job in the first 30 minutes.

Jac Morgan is a different player, he attacks the ball, he handles the ball well.

A player like Morgan can be very effective.

Derwyn Jones
Former Wales lock on BBC Radio Cymru

I'm happy!

The defending has been good, but lack of discipline was the problem for Wales in the first half.

Gareth Griffiths
BBC Sport Wales at Principality Stadium

Wales have a deserved 10-6 half-time lead against Argentina after overcoming early discipline problems to put the Pumas defence under pressure.

But Wayne Pivac's side will not need reminding how Michael Cheika's side came out strongly in the second half at Twickenham to seal the 30-29 victory against England.

The Pumas are not going away. Wales will know that.

Caryl James
Former Wales wing on BBC Radio Cymru

We improved as the half went on, and we're growing into the game.

The main question is, why do we start so slow?

Wales lead at the break at the Principality Stadium.

Wayne Pivac's side looked bright in the opening couple of minutes before Argentina got a hold of the match.

They could have scored after a number of penalties were kicked to the corner, but Wales held the Pumas to just six points from two Emiliano Boffelli kicks.

Wales wrestled back control of the half after 20 minutes and scored the games only try so far through Taulupe Faletau, who crossed under a mass of Welsh bodies.

Gareth Anscombe added the conversion and a late penalty, so Wales take a four-point lead into the break.

We'll be back shortly for the second half!

Argentina win a line-out just inside the Welsh half, Agustin Creevy attempts a short pass to the front man but it is knocked forward.

Wales with perhaps one more attacking opportunity in the half.