Italy secured a four-try 27-10 win over the USA at Trafalgar Park on Tuesday in a result that means Pool C will go right down to the wire on Sunday.
The five-point success sees the Azzurri go level on points with the Wallabies -- who play Russia on Saturday -- and just three behind Ireland.
It wasn't pretty from the Italians but they will not be losing sleep over that as it was a case of mission accomplished before they go down to Dunedin.
Captain and number eight Sergio Parisse opened the scoring after being handed a lovely offload from lock Cornelius van Zyl while further scores from Luciano Orquera, Martin Castrogiovanni and a penalty try saw them pick up a maximum haul.
The Eagles looked to have been offering stiff competition when Chris Wyles claimed ten points via a try, conversion and penalty inside the first half-hour, but the power of Italy eventually told as the States ended the 2011 Rugby World Cup with a solitary win.
On the back of Parisse's slick score, Tommaso Benvenuti almost got over on the right wing but failed to hang on after good defensive scrambling. And it was then the turn of the Eagles, who levelled after good initial line-breaking work from Paul Emerick seeing Wyles go in for a converted score.
Bergamasco and Wyles traded penalties in the next 10 minutes for the teams to remain locked together. But Orquera sliced through from close range for a 15-10 lead in the 30th minute after some adept mauling and pick-and-go work from his forwards.
Castrogiovanni was held up over the line not long before the break, but the bearded prop wasn't to be denied on the stroke of half-time. He ensured Italy's sustained pressure on the Eagles' line was rewarded by powering over to give his team a ten-point (20-10) half-time lead.
Italy couldn't make their considerable possession and territory advantage count as time slipped away after the break and the pressure mounted for the all-important fourth try.
America's blindside flanker Louis Stanfill was sin-binned for one scrummaging infringement too many, and still the Eagles held firm.
It couldn't last. One scrum too many went down, and referee George Clancy ran under the posts to signal the penalty try in the 66th minute that relieved the tension in Italy's camp.
Man of the match: USA centre Paul Emerick was impressive every time he touched the ball while Sergio Parisse was his usual destructive self. However, for his scrummaging and try-scoring effort we go with Martin Castrogiovanni. His clash with Cian Healy should be epic.
Moment of the match: Italy needed that bonus-point try and when it came on 66 minutes -- via a penalty try -- one could see the relief all around. Job done, mission accomplished.
Villain of the match: Another clean game at World Cup 2011.
The scorers:
For Italy:
Tries: Parisse, Orquera, Castrogiovanni, Penalty
Con: Bergamasco 2
Pen: Bergamasco
For USA:
Tries: Wyles
Con: Wyles
Pen: Wyles
Italy: 15 Luke McLean, 14 Tommaso Benvenuti, 13 Gonzalo Canale, 12 Gonzalo Garcia, 11 Mirco Bergamasco, 10 Luciano Orquera, 9 Fabio Semenzato, 8 Sergio Parisse (c), 7 Mauro Bergamasco, 6 Alessandro Zanni, 5 Cornelius van Zyl, 4 Quintin Geldenhuys, 3 Martin Castrogiovanni, 2 Leonardo Ghiraldini, 1 Salvatore Perugini.
Replacements: 16 Fabio Ongaro, 17 Andrea Lo Cicero, 18 Marco Bortolami, 19 Paul Derbyshire, 20 Edoardo Gori, 21 Riccardo Bocchino, 22 Giulio Toniolatti.
USA: 15 Chris Wyles, 14 Takudzwa Ngwenya, 13 Paul Emerick, 12 Andrew Suniula, 11 James Paterson, 10 Roland Suniula, 9 Mike Petri, 8 Nic Johnson, 7 Todd Clever (c), 6 Louis Stanfill, 5 Hayden Smith, 4 John van der Giessen, 3 Matekitonga Moeakiola, 2 Chris Biller, 1 Mike MacDonald.
Replacements: 16 Phil Thiel, 17 Shawn Pittman, 18 Scott LaValla, 19 Pat Danahy, 20 Tim Usasz, 21 Nese Malifa, 22 Blaine Scully.
Referee: George Clancy (IRE)
The game in Napier created the same sharing of the points that occurred in the 2007 tournament in what was an entertaining spectacle for the fans.
The writing was on the wall when the Welsh notched up three tries inside the first twenty minutes, but the Namibians stood firm and it took another opening of the floodgates in the final quarter to see Wales really run away with it.
It was a gripping game at Wellington Regional Stadium as the Pumas came from behind to claim a priceless victory in the Pool B shake-up.
With only six players backing up from the 15-6 upset of Australia at Eden Park last weekend, they still maintained their three-point lead over the Wallabies in Pool C heading into the final games.
While they only scored two tries through scrum-half Kahn Fotuali'i and number eight George Stowers, Samoa will be delighted with the win.
The All Blacks could not have asked for a better performance to celebrate captain Richie McCaw's 100th cap and they are now guaranteed to finish atop of Pool A following three-straight maximums.
England ran in a total of ten tries in a woefully one-sided encounter under the roof of the Otago Stadium.
The Wallabies punished some weak defence from the Americans (responsible for 24 missed tackles) by running in eleven tries, with wing Adam Ashley-Cooper bagging a hat-trick.
Veteran wing Bryan Habana's first-half score saw him set a new Test try-scoring record for the Springboks, finally breaking Joost van der Westhuizen's long-standing benchmark.
Having lost to New Zealand and Canada, crowd favourites Tonga finally gave their fans something to cheer about following a well-earned win over an error-strewn Japanese outfit.
The result means Italy move level with Australia on five points in a pool that could have a massive impact on the make up of the play-offs.
In difficult conditions that made handling of the ball difficult, France scrum-half Moran Parra landed 23 points from the boot to ensure Les Bleus were able to bank their second win of the tournament in Napier.
Whilst England bagged maximum points against the brave Georgians, who never gave up until the final whistle, Martin Johnson will know there's still plenty of work ahead in what was another unconvincing display by his side.
Trailing by four points (6-10) at half-time, Wales dug deep to deny the Samoans victory thanks to a try by wing Shane Williams thirteen minutes from full-time which proved to be the match-winner.
There is no hiding the fact that a poor Wallabies side came off second best to the Irish as their key players were superbly contained by a side who in Brian O'Driscoll's words ''dug deep into the well''.
The defending champions were a far superior outfit from the one that edged the Welsh by one point a week ago, and silenced their critics with a comprehensive six-try victory.
The Pumas were full value for their win in a one-sided Pool B encounter that saw seven tries being scored -- six of them to Argentina.
It quickly turned into a procession in Waikato as Ma'a Nonu caused all kinds of problems for the Brave Blossoms, who had rested several of their first-choice players. New Zealand had done something similar during midweek while niggles for Richie McCaw and Dan Carter saw them pull out soon after being named in the starting XV.
Intensity was the name of the game as the protagonists went at each other hammer and tongs.