Tom Shanklin
Former Wales international on BBC Radio 5 Live Sports Extra

Forget Wales winning. Let's just get some points! It's humiliating, coming in as reigning champions to not even get a score on the board.

This has to go down as one of the worst starts to a title defence in Six Nations history?

After good breakdown work from replacement prop Dillon Lewis to earn a turnover penalty, Callum Sheedy's first contribution is to fail to find touch with his penalty.

Luckily for him, Ireland's next clearance goes dead and Wales have a scrum just inside the Irish half.

Aaron Wainwright picks up at the base of a Wales scrum inside their own 22 and Dan Biggar clears into touch.

That's Biggar's final act of the game. Callum Sheedy replaces the Wales skipper.

A reprieve for Wales as Ireland are guilty of accidental offside, giving Wales a scrum near their own try line.

Nothing's getting easier for the visitors, though. Ireland bring on Lions scrum-half Conor Murray to replace Jamison Gibson-Park.

Tommy Bowe
Former Ireland winger on BBC Radio 5 Live Sports Extra

Wales need to be more disciplined or they will be facing another yellow card soon.

Michael Morrow
BBC Sport NI at the Aviva Stadium

Mexican wave alert.

That's harsh on Ireland's performance today, it doesn't deserve a Mexican wave.

Wales are in at the side of an Ireland maul, so another Irish penalty leads to another Carbery kick to the corner.

Tommy Bowe
Former Ireland winger on BBC Radio 5 Live Sports Extra

Someone's going to have to take a gamble and take the attack to Ireland. Wales are being so passive. Can they get the ball to Josh Adams or Rees-Zammit to make a move?

Ireland have a penalty near the Welsh 22, which Joey Carbery kicks to the corner.

This could get even worse for Wales.

Garry Ringrose's kick turns the Welsh defence and replacement scrum-half Gareth Davies kicks to touch.

Ireland have a line-out near the Welsh 22 and make a couple more changes as Ryan Baird and Cian Healy replace James Ryan and Andrew Porter.

Tommy Bowe
Former Ireland winger on BBC Radio 5 Live Sports Extra

The Welsh regions not performing is nothing new, but the national team struggling is. Wayne Pivac did so well last year but the question is, can he bring these young players through?

Johnny Sexton's work is done for the day. He's been replaced by Joey Carbery.

Josh Adams is back on and wins possession for Wales with a thunderous tackle on Caelan Doris.

The ball is worked right to Louis Rees-Zammit, who gets a rare attacking touch.

Taine Basham then makes half a break on the other side but he is penalised for not releasing. Peter O'Mahony with the turnover penalty.

Tommy Bowe
Former Ireland winger on BBC Radio 5 Live Sports Extra

Mack Hansen on debut, wow. He has shown exactly why Andy Farrell put his faith in him.

Ireland get another penalty for a collapsed scrum and Peter O'Mahony howls in celebration like a hyena.

Johnny Sexton kicks to touch in the Welsh 22. Ireland smell blood.

Tom Shanklin
Former Wales international on BBC Radio 5 Live Sports Extra

A lack of concentration from Liam Williams. It's a nice ball, there's no excuse for that. Wales' heads are down, the body language isn't great.

This is where Wales are missing their big leaders in Alun Wyn Jones and Ken Owens.

Tommy Bowe
Former Ireland winger on BBC Radio 5 Live Sports Extra

I'm not sure how much longer Johnny Sexton is going to stay on the pitch.

Another Wales attack goes nowhere fast. The ball is near halfway and the forwards are carrying gamely enough, but it all breaks down again as Liam Williams knocks on.

This has been a miserable day for the reigning champions.