Chris Henry
Former Ireland flanker on BBC Radio Ulster

Ireland love ruining parties - especially on St Patrick's Day!

It's probably too much to expect Scotland to pull something out of the bag against England but Ireland will just want to get one over on Wales and stop their momentum ahead of the World Cup this year.

Image source, Inpho

Sonja McLaughlan
BBC Sport rugby union reporter

Rory Best makes small talk with referee Angus Gardner as he waits for Alun Wyn Jones to turn up for the coin toss. He seems very relaxed.

Image source, BBC Sport

Get Inspired
#GetInspired

While we're following the elite of international rugby, let's take a pause to show an initiative at grassroots level...

You can find out how to get into rugby with the Get Inspired guide.

MDplusthree: Hope Ireland do well this #StPatricksWeekend, external ... ..and also hope #Scotland, external have a good one too #AsOne, external

Emma Gregory: New workflow system rolled out last week at work. First task assigned to me by a colleague was to complete the Beeb feed grand slam... Don't let me down lovely people at the BBC!

We wouldn't want to mess with that new workflow Emma.

Martin Johnson
Former England captain and coach on BBC One

The next competitive game teams play is the World Cup so that really adds something to it. It's a big, big game for Ireland.

Martyn Williams
Former Wales international on BBC One

It's a special team Wales have got at the minute. But it's been a nervous week.

It hasn't been plain sailing - every game has been a grind and they've got to go one more time against a strong Ireland side today.

Simon Gleave
Head of sports analysis, Gracenote

Image source, Getty Images

• Ireland's starting XV contains 11 of the 15 who started against Wales last year, the last time Wales were defeated by anyone. Tadhg Furlong (instead of Andrew Porter) Tadhg Beirne (for Devin Toner), Sean O'Brien (for Dan Leavy) and Garry Ringrose (for Chris Farrell) are the four changes from that team.

• Rory Best will end his Six Nations career as the fourth oldest player to be selected in the starting XV of the competition in the professional era.

• Best is 36 year 213 days old today. Italy's Andrea Lo Cicero is the oldest player to have started a match in the competition during the professional era.

Image source, Getty Images

Ireland have made three changes.

With Iain Henderson out with injury, former Scarlets, now Munster lock Tadhg Beirne will make his Six Nations debut, while Rob Kearney and Sean O'Brien return at the expense of Josh van der Flier and Jordan Larmour.

Image source, Getty Images

Replacements: Scannell, Kilcoyne, Porter, Roux, Conan, Marmion, Carty, Larmour.

Simon Gleave
Head of sports analysis, Gracenote

Image source, Getty Images

• Alun Wyn Jones equals Gethin Jenkins as the most capped Welshman of all-time with 134 caps including matches for the British and Irish Lions. Only four players have won more caps than Alun Wyn Jones: Richie McCaw (148, New Zealand), Brian O' Driscoll (141, Ireland/Lions) George Gregan (139, Australia) and Sergio Parisse (138, Italy).

• Rob Evans, Ken Owens and Tomas Francis are the starting Wales front row in a Six Nations match for the ninth time. This equals the professional era record for Wales in the competition as Gethin Jenkins, Matthew Rees and Adam Jones started nine Six Nations matches together between 2008 and 2013.

• Wales have scored 66% of their points in the second half of their matches.

Image source, Getty Images

First things first then, the cast list for the final act in this five-part drama.

And unbeaten Wales are unchanged as Warren Gatland opts not to fix a not-broke winning machine.

Full-back Liam Williams was a doubt but has recovered from the shoulder injury that forced him off against Scotland last weekend.

Replacements:16- Dee, 17-Smith, 18-Lewis, 19-Ball, 20-Wainwright, 21-A Davies, 22-Biggar, 23-Watkin.

Louise Gwilliam
BBC Radio 5 live rugby producer

We think this is the trophy arriving... there will be one here and one at Twickenham today.

Image source, BBC Sport

BBC One

This match is live on BBC One, BBC Radio 5 live, BBC Radio Wales, BBC Radio Cymru and BBC Radio Ulster all of which you can access at the top of this page.

Frankly, we are coming at you from more angles than a midfield double dummy scissors.

Turn on, tune in and freak out.

And use #bbcrugby to get in touch.

There are no title hopes on the line in Rome in the early game but it has still been an entertaining encounter.

Tito Tebaldi has just gone over for Italy to reduce their deficit against France. It's now 14-17.

The Italians have lost their last 21 Six Nations matches. Could that sorry run end today?

There are around 20 minutes to go.

Image source, Reuters

Image source, Getty

Let us know how you are choosing to see out this final day of the 2019 Six Nations.

Are you bunkering down at home with enough beige snacks to send chills down Gillian McKeith's spine?

Watching from your local rugby club, the scent of deep heat and mildew still in the nostrils, after an early kick-off of your own?

Or are you in a local hostelry, necking the title sponsors' best?

Wherever you are, share it with us, via 81111 on text or attach a photo to a tweet to #bbcrugby., external

Sonja McLaughlan
BBC Sport rugby union reporter

The view facing the players at precisely 14.39 GMT when the doors open at the mouth of the tunnel. The noise will wash over them like a tidal wave.

Image source, BBC Sport

Image source, Getty Images

Any other result than a Wales win though and the door is open for a Six Nations heist.

• If they draw with Ireland, Wales could still win the title, but they would need Scotland, without a win at Twickenham since 1983, to beat England away in the day's 17:00 GMT kick-off.
• If both England and Wales draw, England win the title if they gain a bonus point and Warren Gatland's side don't
• If Wales lose, the title is gone. Either to Ireland or, if England beat Scotland later, west across the Severn to Twickenham.

Emotions, secure your harness and keep your hands inside the car at all times. It is time to board the cliche coaster.

Dafydd Pritchard
BBC Sport Wales at the Principality Stadium

Image source, Getty Images

So, here we are then. Just as Warren Gatland said. Or at least it could be later this afternoon.

This is the New Zealander’s final Six Nations match in charge of Wales before his 12-year reign comes to an end after the World Cup.

In typically bullish fashion, Gatland declared before the start of this campaign that, if Wales beat France in their opening fixture, they would go on to win the championship.

And now, on the final day of the competition, Wales are a win over Ireland away from a Grand Slam.

It would be a third for Gatland, a record for a Six Nations head coach. Given that Wales have won on both previous occasions they have played for a Grand Slam under Gatland, you’d think he would be quietly confident of extending his side’s record 13-match winning run.

Image source, Getty Images

Of course, it doesn't have to be complicated.

If Wales get the job done against Ireland, you can pack away the abacuses, fold away the flowcharts, stopper up the what-ifs and could-bes.

If, come 16:30 GMT, Wales are ahead on the Principality Stadium scoreboard, joy will be unbridled in the stands, champagne will be uncorked on the pitch and Warren Gatland will have signed off from Six Nations duty with a 14th successive Test win and a third Grand Slam.

Image source, Getty Images

So here we are.

Four rounds of bruising action has reduced Six Nations to three title contenders.

But only one has their destiny in their own hands.

Welcome to Super Saturday - a day of collisions, calculations and permutations. Let the fun begin.