Might that be the area that Wales can tighten the vice on Ireland's short and curlies?

The red front row send their green counterparts into reverse at scrum time and Dan Biggar is going to take a pot shot at goal.

Ireland have twice built up pressure in the Wales 22 (shown by their 42.9% of territory) and twice come away with three points.

Wales were not able to make their only foray forward count, while are also trailing in the possession stakes after the opening 15 minutes.

Image source, Opta

Image source, PA

So far, this match has been sirloin steak compared to the economy sausages served up in yesterday's two matches.

Wales rumbling around the Ireland 22, battering with heavy runners before moving the ball crisply out wide.

But Ireland's defence is bank-vault secure. Andrew Trimble tickles Liam Williams' ribs with another shuddering hit. 

Denis Hickie
Former Ireland winger on BBC Radio 5 live sports extra

"Ireland will be very happy to be defending their line only moments ago to go down the other end and get a penalty to go 6-0 up.

"If I was playing against Ireland I would say 'let them have the ball and trust our defence'."

Johnny Sexton clips over the kick and Ireland are making hay on their fast start.

Wales need to yank up the handbrake before this match gets away from them.

Image source, Getty Images

The game has started at warp speed. And it is Ireland with the whip hand, pushing the tempo.

Tommy O'Donnell takes the ball in around the fringes in the Wales 22. The visitors infringe - possibly a high tackle in there.

No advantage and Johnny Sexton is going to take on another regulation penalty. 

Three points surely in the post?

Oskar Scarsbrook: If Wales win, they'll win the grand slam. If Ireland win, Wales will still win the Six Nations.

Gasko: Supporting Ireland this afternoon, what a start to the game!

Turnover!

Ireland's defence snaffles the ball back as Andrew Trimble envelops Jamie Roberts and the ball with a superb smother tackle.

With Wales in attack mode, Ireland counter - Devin Toner galloping into fresh pastures - and they are up into Wales' half via Simon Zebo's clever poked kick into touch.

The hosts have won the first 10 minutes.

Classic Warrenball as Jamie Roberts crashes into a host of green shirts in midfield.

Then something more expansive as Liam Williams gets down a corridor of space out wide.

Wales up to within five...

Denis Hickie
Former Ireland winger on BBC Radio 5 live sports extra

"The perfect start for Ireland - to get some points on the board as quickly as possible.

"Wales have been a little sluggish and that has been a criticism of them in the past. It will become a weight on their minds if they do not score soon."

Dan Biggar claims a steepling return kick from Liam Williams. George North wriggles and wiggles his way into the Ireland 22 metre line.

Wales hunting an immediate response.

Image source, Getty Images

Johnny Sexton strolls up and boots the ball clean between the uprights as casually as if he were returning next door's football back over the fence.

Wales finally stray offside in midfield in their eagerness to halt the Ireland waves of attack.

Jerome Garces points skywards and Johnny Sexton is going to take on this kick, just inside the 22.

Should be routine.

Image source, Rex Features

Ireland are rumbling.

CJ Stander rolls around the corner and takes the hosts up to within ten metres.

Wales are scrambling...

Denis Hickie
Former Ireland winger on BBC Radio 5 live sports extra

"I feel a little bit nervous and Ireland are up against very strong opposition.

"Wales are favourites, but there is pressure on them. What is critical for Ireland is they don't let Wales build into a lead."

Image source, Rex Features

Welcome to the game Robbie Henshaw.

Jamie Roberts dishes out a dose of big shoulder, but his opposite number keeps his senses and retains the ball.

Jonny Sexton gets us underway, kicking long.

Cleanly taken by a Welsh catcher, the visitors roll through a couple of phases, but knock on up by their own 10-metre.

Scrum down Ireland and they have won that kick-off.  

Image source, Rex Features

They don't go in for the pyro blasts of the Millennium Stadium, but Ireland make up for the lack of cordite with the sheer length of build-up.

Introductions made between a host of dignitaries and Rory Best's kids, one anthem for Wales, two for Ireland and finally the two teams are ready to peel off the tracksuits and take up the cudgels.