Tonga caused a massive upset in Aberdeen on Saturday, outscoring Scotland two tries to none to win 21-15 at Pittodrie.
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
Another miserable loss for Scotland means they are winless in November, leaving coach Andy Robinson's job hanging in the balance. They also finish the month outside the top eight seeds for the 2015 World Cup draw.
Greig Laidlaw kicked five penalties for Scotland, but the hosts were uninspired and ineffective on attack on the narrow pitch and were ultimately overpowered in an attritional affair.
Despite seeing three player sent to the sin bin, Tonga ran out deserved winners, claiming another big scalp after beating France at last year's World Cup.
The Tongans came out with all guns blazing and their rousing early endeavours forced the Scots into giving away a penalty as Al Strokosch illegally entered a ruck.
There was a reprieve for the hosts, however, when fly-half Fangatapu 'Apikotoa sent his 40-metre strike narrowly wide.
But they kept up the pressure and 'Apikotoa was handed an immediate chance to make amends from closer range.
And this time his aim was true to give his side the lead.
Scotland hit back positively and quickly with a promising raid, but there was more frustration as Laidlaw's angled penalty rebounded from the upright, allowing Tonga to clear the danger.
They maintained the momentum and a fine Laidlaw cross kick spread panic among the Tongan back ranks.
And the fly-half followed in the footsteps of his opposite number by banging over his second pot at goal in the 11th minute.
Tonga were posing plenty of problems when they were on the front foot, but Scotland looked sharp with the ball in the hands of the backs.
Their confidence was underlined as they opted to go for try points rather than another penalty.
Hooker Scott Lawson was driven over the line in the wake of a well-executed rolling maul, but the video referee ruled he had failed to ground the ball.
Only desperate defence kept out the Scots as they laid siege to the line during a series of scrums and further penalties.
Eight minutes of constant pressure yielded nothing for the home men and a tame turnover allowed the visitors to escape from their danger zone.
It was then Scotland's turn to show off their defensive strengths as Tonga mounted a spate of raids.
But soon the Scots were back on the offensive thanks to a lightning break through the middle by Laidlaw.
He was involved again in the next phase, but yet again Tonga backtracked to mop up.
Scotland were given further incentive seven minutes before half time when lock Lokotui was sinbinned for dangerous tactics in the line out.
Prop Halani 'Aulika was perhaps fortunate to dodge the same punishment for a no-arms body check on Matt Scott.
Having failed to breach the visiting markers, Scotland resorted to the boot — Laidlaw's penalty giving them the edge.
The action continued to be disjointed and untidy after the restart.
But the crowd volume rose when Sean Lamont bashed his way down the middle to create a clear-cut chance.
They couldn't turn the good work into a touchdown, but collected another three points from Laidlaw's accuracy.
And there was more breathing space for Scotland when 'Apikotoa was short with his next attempt at the sticks.
The contest burst into life in the 51st minute as Tonga snatched a surprise lead. Lokotui more than made up for his yellow card by burrowing over for a try from point-blank range, giving 'Apikotoa a simple conversion.
Laidlaw instantly eased the Scots' anxiety by adding penalty number four — and repeated the dose midway through the half.
But still Tonga looked more clinical in attack and 'Apikotoa narrowed the gap with his next strike.
Even better was to come for the tourists as winger Vainikolo left his cover for dead with two dazzling dummies and galloped in for a superb solo try from his own half.
The tension level soared when debut substitute Tom Heathcote watched in agony as his first shot at goal dipped under the crossbar.
And Scotland's task became a lost cause as 'Apikotoa found the target again.
The scorers:
For Scotland:
Pens: Laidlaw 5
For Tonga:
Tries: Lokotui, Vainikolo
Con: 'Apikotoa
Pens: 'Apikotoa 3
Yellow cards: Lokotui; Latu; Mafi
Scotland: 15 Stuart Hogg, 14 Sean Lamont, 13 Max Evans, 12 Matt Scott, 11 Tim Visser, 10 Greig Laidlaw, 9 Henry Pyrgos, 8 David Denton, 7 Kelly Brown (c), 6 Alasdair Strokosch, 5 Alastair Kellock, 4 Richie Gray, 3 Euan Murray, 2 Scott Lawson, 1 Ryan Grant.
Replacements: 16 Dougie Hall, 17 Kyle Traynor, 18 Geoff Cross, 19 Grant Gilchrist, 20 John Barclay, 21 Rory Lawson, 22 Tom Heathcote, 23 Nick De Luca.
Tonga: 15 Vungakoto Lilo, 14 Fetu'u Vainikolo, 13 Sukanaivalu Hufanga, 12 Sione Piukala, 11 Will Helu, 10 Fangatapu 'Apikotoa, 9 Taniela Moa, 8 Viliami Ma'afu, 7 Nili Latu (c), 6 Hale T Pole, 5 Tukulua Lokotui, 4 Joe Tu'ineau, 3 Halani 'Aulika, 2 Elvis Taione, 1 Alisona Taumalolo.
Replacements: 16 Ilaisa Ma'asi, 17 Tevita Mailau, 18 Kamaliele Sakalia, 19 Sitiveni Mafi, 20 Sione Timani, 21 Viliame 'longi, 22 Eddie Paea, 23 Alipate Fatafehi.
Referee: Mathieu Raynal (France)
Assistant referees: George Clancy (Ireland) and Marius Mitrea (Italy)
TMO: Gareth Simmonds (Wales)
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.
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).