France followed up last weekend's drubbing of Australia with another convincing display as they beat Argentina 39-22 in Lille on Saturday.
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.
France led 24-13 at the end of an action-packed first-half that saw the momentum and the lead swing back and forth.
Argentina were 13-3 head after 15 minutes but two Vincent Clerc tries in the space of two minutes handed the initiative back to the hosts, who went into the interval with their tails up after Yannick Nyanga added a third try just before the break.
The second period proved much tighter with Fred Michalak's boot securing the win.
France showed their intentions to get the ball wide at pace early on and Michalak could have opened the scoring from the kicking tee when the Pumas were caught offside.
But the visitors were first to cross the whitewash after a brilliant break in midfield that saw Nicolas Sanchez and Gonzalo Tiesi switch the angle of attack twice before putting Marcelo Bosch away to score under the posts.
Sanchez added two more penalties to stretch the lead to ten points and the Pumas were looking dangerous as they regularly broke up the centre of the field, just like they did against Wales a week ago.
Les Bleus would have the better of the second quarter though with Louis Picamoles once again at the heart of their forward momentum. The big number eight and Pascal Papé combined to send Maxime Machenaud down the touchline, the scrum-half threw a wild pass inside but Clerc could pick it up to score.
Moments later Florian Fritz's neat chip ahead sat up perfectly for the racing Clerc and the wing could sprint home.
Off the back of a French maul, Nyanga handed off two defenders before using his pace to bolt home for a brilliant solo try and give the hosts an 11-point lead at half time.
The second half was more of a dog fight as Sanchez and Michalak traded penalties and drop-goals to leave the status quo with 15 minutes left.
The French fly-half broke the pattern in the dying minutes however as the Pumas ran out of steam, adding two more penalties to secure the win.
Man of the match: Plenty of candidates with the French back-row looking particularly good. We'll go for Yannick Nyanga whose blistering pace earned him a try, but he put in plenty of hard graft too.
Moment of the match: France never looked back after Clerc's second try.
Villain of the match: A few handbags emerged, but nothing too rough.
The scorers:
For France:
Tries: Clerc 2, Nyanga
Cons: Michalak 3
Pens: Michalak 5
Drop: Michalak
For Argentina:
Try: Bosch
Con: Sanchez
Pens: Sanchez 4
Drop: Sanchez
France: 15 Brice Dulin, 14 Wesley Fofana, 13 Florian Fritz , 12 Maxime Mermoz, 11 Vincent Clerc, 10 Frederic Michalak, 9 Maxime Machenaud, 8 Louis Picamoles, 7 Fulgence Ouedraogo, 6 Yannick Nyanga, 5 Yoann Maestri, 4 Pascal Papé (c), 3 Nicolas Mas, 2 Dimitri Szarzewski, 1 Yannick Forestier.
Replacements: 16 Benjamin Kayser, 17 Thomas Domingo, 18 Vincent Debaty, 19 Jocelino Suta, 20 Damien Chouly, 21 Morgan Parra, 22 Francois Trinh-Duc, 23 Yoann Huget.
Argentina: 15 Lucas Gonzalez Amorosino, 14 Horacio Agulla, 13 Gonzalo Tiesi, 12 Marcelo Bosch, 11 Juan Imhoff, 10 Nicolas Sanchez, 9 Martin Landajo, 8 Leonardo Senatore, 7 Juan Manuel Leguizamon, 6 Juan Martin Fernandez Lobbe, 5 Julio Farias Cabello, 4 Manuel Carizza, 3 Juan Figallo, 2 Eusebio Guinazu, 1 Marcos Ayerza.
Replacements: 16 Agustin Creevy, 17 Nahuel Lobo, 18 Francisco Gomez Kodela, 19 Tomas Vallejos, 20 Tomas De la Vega, 21 Tomas Cubelli, 22 Gonzalo Camacho, 23 Joaquin Tuculet.
Venue: Stade Lille Metropole
Referee: Steve Walsh (Australia)
Assistant referees: Jaco Peyper (South Africa), David Changleng (Scotland)
Television match official: Carlo Damasco (Italy)
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.
Following an early blip whereby the islanders held the upper hand, England clicked into gear to claim a seven-try win that will please Stuart Lancaster.
When Wales had possession they were guilty of forcing passes, and their high error-count merely played into Argentina's hands. The only positive note for a disjointed home team was that they were in front approaching the last quarter of the match.
Italy warmed up for the visit of two heavyweights in the coming weeks with an unconvincing win over a feisty Tongan side.
The Americans ran in six tries to build a commanding lead by the hour mark but let their intensity drop in the final quarter to allow the Russians to bring a semblance of respectability to the scoreline.
The Pacific Islanders dominated from the start, scoring five tries — including four for debutant wing Robert Lilomaiava — to cruise into a 42-0 lead.
In a performance worthy of their status as the top-ranked team in the world, New Zealand weathered an early storm to overturn a half-time deficit and eventually run out comfortable winners.
Though honours were shared by the trans-Tasman rivals, Australia will treat this result as a mental victory seeing that Robbie Deans' troops weren't given a chance in hell of matching the All Blacks prior to kick-off.
It wasn't pretty but one feels the Wallabies won't mind that as the success supersedes a forgetful period of injuries and off-field issues (hopefully).
The All Blacks produced their best performance of the year to demolish los Pumas, scoring seven tries including a hat-trick for Cory Jane and two for his fellow wing Julian Savea.
The Springboks led 14-3 at the interval but the Wallabies were lucky not to be much further behind. Two tight calls from the TMO meant the home side did not have the four-try bonus point by half-time, but Heyneke Meyer's men secured a full house of points after the break as Bryan Habana bagged a hat-trick to add to earlier scores from Zane Kirchner and Francois Louw.
The All Blacks, unbeaten in 14 Tests, outscored the Springboks two tries to one for a win that sees them take a commanding lead in the competition.
The Pumas looked on course for a famous win after two quick-fire tries saw the tournament newcomers lead 19-6 with just over a quarter of the match remaining.