Ireland produced a brilliant first-half display to clinch the opening fixture of the Six Nations with a 30-22 win over Wales in Cardiff.
A dire performance from Wales in the opening 40 minutes left them with a mountain to climb in the second-half, at which they threw everything to bounce back from a 30-3 scoreline to 30-22 in an utterly dominant half.
Ireland appeared to mentally crumble under the depth of their 27-point lead, producing brilliant defence at times but unable to escape their own half as Wales pounded away at the visitors try line, falling short of cutting down the whole deficit in a classic.
Superb hands from Brian O'Driscoll built the opening opportunity for Simon Zebo to touchdown in the left hand corner for the first score of the afternoon, with Jonathan Sexton converting.
Sexton's control with the boot and sharp hands from the Irish backs kept Wales pinned back and after a set of punishing phases, Ireland were held up in the right-hand corner. Wales held out from the resulting phase of play and Sexton settled for a penalty to stretch the lead to 10-0.
Best then charged down Biggar's kick before gathering the loose ball and sending the ball wide first to Heaslip before an audacious bit of skill from Zebo saw him use his feet kept the attack going, Cian Healy pouncing from close range to leave Wales on the ropes.
Another Sexton penalty stretched the lead to 20-0 with half an hour gone, Wales imploding with another loose pass from Davies going straight into touch in the Irish 22. Healy's attempt to drive out of his 22 resulted in a penalty at the breakdown to Wales, with Halfpenny putting his side on the board.
Warburton's cheap block on Zebo handed Ireland another attacking lineout, with O'Brien setting the foundations for a final flourish in the first half. Another penalty against Wales at the breakdown yielded one more opportunity for Sexton, who slotted the kick to leave the half-time score at 23-3.
Ireland carried on where they left off at the start of the second half, a scrum on the Welsh 22 setting up a series of relentless drives before O'Driscoll clawed his way over the line from the bottom of a ruck for Ireland's third try.
A response from Wales was essential and it came through sustained drives forward into the Irish half, hard yards culminating in a Welsh lineout five metres out from the try line. A pre-planned move saw Toby Faletau held up narrowly short, before Alex Cuthbert found space between the rushing Irish defenders to score the first try of the afternoon for Wales.
Cuthbert's score seemed to light a fuse under Welsh backsides as they went for broke, Faletau storming down the left touchline before a crucial hand from O'Driscoll brought the surge to a halt.
A tap penalty sent Wales backwards rather than nearer to the line as the Irish defence turned desperate, Gilroy producing a memorable tackle on Halfpenny before Romain Poite sent Rory Best to the sin-bin for entering from the side.
The extra space was then capitalised on by Halfpenny, the full-back burrowing under the double tackle of Rob Kearney and Jamie Heaslip to score in the right corner, missing the conversion to make the score 30-15.
There was to be no let up in the Welsh response as Cuthbert thundered down the right wing, but breakdown defence from Healy was enough to relieve the pressure with a penalty.
A crucial Welsh scrum yielded a penalty for Biggar to find the corner once more, Ireland mentally struggling with the hosts resurgence. Faletau appeared initially to crash the ball against the base of the post, falling marginally short as Conor Murray was sent to the bin.
Wales were utterly dominant but unable to cross the Irish line, Davies missing a simple overlap as the green wall heroically held firm with time running out.
The hosts inevitably came again though — Craig Mitchell appearing to dive over the line before the TMO confirmed Wales third try of the afternoon, narrowing the score to 30-22.
Ireland finally relieved the pressure by pinning Wales deep in their own half to close out a brilliant opener to this year's tournament — a classic with each side forcing the other into submission for lengthy periods in each half. Ireland march on dreaming of a title. Wales have hope.
Man of the match: Streetwise, skilful, a magnificent return to form from Brian O'Driscoll stole the show in Cardiff.
Moment of the match: An outrageous piece of footwork from Simon Zebo to control possession in the build-up to Ireland's second try.
Villain of the match: Unnecessary petulance from Mike Phillips after being brought back from a tap penalty was needless.
The scorers:
For Wales:
Tries: Cuthbert, Halfpenny, Mitchell
Con: Halfpenny 2
Pens: Halfpenny
For Ireland:
Tries: Zebo, Healy, O'Driscoll
Cons: Sexton 3
Pens: Sexton 3
Yellow Card: Best, Murray
Wales: 15 Leigh Halfpenny, 14 Alex Cuthbert, 13 Jonathan Davies, 12 Jamie Roberts, 11 George North, 10 Dan Biggar, 9 Mike Phillips, 8 Toby Faletau, 7 Sam Warburton, 6 Aaron Shingler, 5 Ian Evans, 4 Andrew Coombs, 3 Adam Jones, 2 Matthew Rees, 1 Gethin Jenkins.
Replacements: 16 Ken Owens, 17 Paul James, 18 Craig Mitchell, 19 Olly Kohn, 20 Justin Tipuric, 21 Lloyd Williams, 22 James Hook, 23 Scott Williams.
Ireland: 15 Rob Kearney, 14 Craig Gilroy, 13 Brian O'Driscoll, 12 Gordon D'Arcy, 11 Simon Zebo, 10 Jonathan Sexton, 9 Conor Murray, 8 Jamie Heaslip, 7 Sean O'Brien, 6 Peter O'Mahony, 5 Mike McCarthy, 4 Donnacha Ryan, 3 Mike Ross, 2 Rory Best, 1 Cian Healy.
Replacements: 16 Sean Cronin, 17 Dave Kilcoyne, 18 Declan Fitzpatrick, 19 Donncha O'Callaghan, 20 Chris Henry, 21 Eoin Reddan, 22 Ronan O'Gara, 23 Keith Earls.
The loss meant that Wales, the current Grand Slam champions and World Cup semi-finalists, fell out of the top-eight seeds for RWC 2015, the draw for which takes place on Monday.
New Zealand responded to a 15-0 defecit with scores from Julian Savea and Kieran Read, before England took charge thanks to three of their own from Brad Barritt, Chris Ashton and Manu Tuilagi in an astonishing second-half performance.
The visitors crossed the whitewash on five occasions with Wyles bagging a brace, while Andrew Suniula, Paul Emerick and Takudzwa Ngwenya also added their name to the scoresheet.
Three penalties from Pat Lambie and a bizarre try from Willem Alberts handed the visitors the win, with Toby Flood and Owen Farrell accumulating five penalties between them.
Ireland led from start to finish in a dominant display, outscoring their visitors seven tries to two.
Unlike their convincing successes over Australia and Argentina this month, victory didn't come easily for the French, who were trailing the Islanders going into the final quarter.
Predictions the All Blacks' attack would incinerate Wales' defence came to fruition in the first half especially. However even though the scoreline may read otherwise, it was a much better effort from the Welsh - the second half especially.
Scotland led 6-3 at half-time but second-period tries from Tukulua Lokotui and Fetu Vainikolo saw the Pacific Islanders earn their first ever Test triumph on the European stage
A superb second half fightback almost saw the home side pulling off a draw but a penalty from their fly-half Luciano Orquera, in the 79th minute, sailed just wide of the posts.
In a lacklustre but testy match, the Maori scored two tries to one plus 22 points from Willie Ripia.
Winger Fetu'u Vainakolo grabbed the opening score for the Islanders with a try after ten minutes, before the USA's Luke Hume looked to have levelled the scores only for this try to be ruled out for a forward pass.
A dominant first-half performance saw the visitors take a 14-3 lead into the interval thanks to Strauss's first try — off a rolling maul that Scotland failed to deal with — and three penalties from Pat Lambie.
With England, Wales, Scotland and Italy losing to southern opposition this weekend — Ireland were playing in a non-cap international — the French confirmed their status as the top European team in the world rankings.
The result is Canada's third consecutive win over the Bears.
Gilroy was the star of the show while Fergus McFadden grabbed two tries and Sean Cronin, Darren Cave and Luke Marshall added the gloss.
In front of a packed crowd at Twickenham, England opened the scoring with a penalty from Toby Flood with two minutes gone, but it was Australia who held the edge early on in terms of territory and possession.
The world champions led from start to finish to maintain their perfect record against Italy, who put up a solid challenge in the first half but ultimately couldn't match the visitors' attacking firepower.
Samoa sent Six Nations holders Wales crashing to their fifth consecutive loss after the visitors secured a 26-19 win at the Millennium Stadium on Friday.
In spells it was a performance that showed once again why the All Blacks are considered the finest exponents of attacking rugby in the game. It also backed up the importance of all players - from 1 to 15 - being comfortable in any position as forward duo Luke Romano and Wyatt Crockett proved.
Both sides conceded penalty tries in a three-minute span, Romania deliberately collapsing a maul, and Japan collapsing a scrum, to leave Japan leading by one with eight minutes to go.
The result brings an end to Australia's five-game winning streak against les Bleus and puts France in pole position in the chase for the all-important fourth place in the world rankings ahead of the World Cup pool draw next month.
In a tale of two halves, Ireland looked on course for a famous win after leading their visitors 12-3 at half-time.