In Sunday's second match, Italy 'A' survived a second-half Russian fightback to book their place in the Churchill Cup Plate final with a 24-19 win.
The Azzurri led 18-6 at the break but they held on by their fingertips in the last 20 minutes to set up a showdown with Tonga at Sixways on Saturday.
''It was a tough game and in the second half they put some width of the game. But our scrummage was good and gave us a foundation,'' said former Gloucester lock Marco Bortolami.
Senior Italian assistant coach Alessandra Troncon added: ''It was a very important to win because last week we lost to Canada. Russia arein our pool during the World Cup so to win is a good. The scrum saved us a few times so I think it as key for us today.''
Russia face a Bowl final against their World Cup opponents USA and Bears' boss Kingsley Jones said: ''It's a game we should have won. These lads can really play rugby but there was some naivety and not being street wise. But there are a lot of positives. A lot of the players showed what they can do in open space. The line-out improved but the scrum was an issue for us.''
Italy led by nine at halftime thanks to tries from Matteo Pratichetti and Giulio Toniolatti, who went into the corner after a drive and deft offload from loosehead prop Alberto de Marchi.
Russia had to rely on the boot of Yury Kushnarev, who kicked two penalties and then added a third early in the second half to close the gap to nine points.
Tito Tebaldi landed a third penalty but then the tide turned as Russia scored the try of the match, a breakaway from their own 22 when Andrey Bykanov scooped up a loose ball, fed Kushnarev and when Rushan Yagudin took the ball on halfway he stepped out of the tackle and raced away.
With Tebaldi in the sinbin for killing the ball after Vasily Artemyev's break, Riccardo Bocchino stretched the lead.
Kushnarev failed with two attempts that could have put Russia right back into the game and was soon replaced by Anton Ryabov.
Tebaldi missed a penalty and Russia almost hit the killer button when Alexander Shakirov made the break and only a last ditch tackle from Matteo Pratichetti stopped him delivering the final pass to Yagudin.
Russia had a final crack with a freekick which they ran close to the Italian line but they could not capitalise and the chance was lost.
The scorers
For Italy A:
Tries: Pratichetti, Toniolatti
Con: Tebaldi
Pens: Tebaldi 3, Bocchino
For Russia:
Try: Yagudin
Con: Kushnarev
Pens: Kushnarev 4
Italy A: R. Trevisan, G. Toniolatti, A. Pratichetti, A. Pratichetti, M. Sepe; R. Bocchino, T.Tebaldi; A. De Marchi, T. D'Aspice, F. Staibano, J. Furno, V. Bernabo (C), F.Minto, M. Bergamasco, M. Vosawai Reps: A. Manici, M. Aguero, D. Chistolini, M. Bortolami, D. Gerber, G. Venditti, N. Belardo
Russia: I. Klyuchnikov; V. Artemyev, M. Babaev, S. Trishin, R. Yagudin; Y. Kushnarev, A. Bykanov; G. Tsnobiladze, V. Tsnobiladze, A. Chernyshev, A. Panasenko, D. Antonov, V. Gresev, M. Sidorov, V. Grachev (C) Reps: V. Korshunov, A. Travkin, I.Prishchepenko, A. Garbuzov, A. Shakirov, A. Ryabov, I. Galinovsky
Saracens prop Matt Stevens was a standout performer as the Saxons scrum power produced three penalty tries with England boss Martin Johnson an interested onlooker.
The Brumbies Academy winger showed plenty of class, going over for two tries in each half as Tonga turned a 13-10 half-time lead into a canter.
A hat-trick from winger Miles Benjamin, as well as a brace from full-back Mike Brown, helped the Saxons put 13 tries plus a penalty try past the hapless Eagles.
Lock and man-of-the-match Lionel Nallett scored a try either side of half-time to kill off any chances the Welsh had of winning this match, while wing Vincet Clerc effectively ended the contest after touching down under the posts whilst James Hook was serving 10 minutes in the bin.
Declan Kidney's side were arguably three gears up from their showings in earlier rounds and consequently stunned the Grand Slam chasers, with tries from Tommy Bowe and Brian O'Driscoll sealing a much-needed win to lift team morale.
Line-out accuracy and goal-kicking had let down Italy early on as Leonardo Ghiraldini and Mirco Bergamasco struggled to find their range.
It was by no means a performance to savour, but the result will be a relief for the home side. It was another tight contest that could so easily have gone the way of the Scots, but England held on.
Controversy will forever be attached with this March 12 fixture as a Mike Phillips score that should never have been awarded will leave the whole of Ireland fuming on Saturday evening.
The defending Six Nations and Grand Slam champions outscored their hosts two tries to one but made far to many errors, allowing Mirco Bergamasco to slot six penalties and convert Andrea Masi's try to hand Italy the biggest victory in their rugby history.
Jamie Heaslip, Eoin Reddan and Ronan O'Gara touched down for the visitors as Ireland kept their Six Nations title hopes alive -- although based on this performance it's difficult to see them lift the championship trophy next month.
A Ben Foden try early in the second half proved to be the difference between two very evenly-matched sides in a clash high on intensity but littered by errors.
Ten points were missed from the tee by wing Mirco Bergamasco and replacement fly-half Luciano Orquera in a result that will hurt Italy.
Ireland gave a massively improved performance than the one that saw Italy come so close to causing the upset in the championship's history.
Under-fire coach Warren Gatland will be relieved after his team did enough to upset the formbook and put their championship campaign back on track.
It was a showing that will add weight to talk of a possible Grand Slam as sublime running and support lines left the Azzurri with no answer.
Unlike the nightmare against Australia the last time les Bleus were at the Stade de France, Marc Lièvremont's side were all singing from the same hymn sheet as they scored four eye-catching tries.
Played under glorious sunshine, this was always going to be a banana skin that needed avoiding for Ireland. And boy was it difficult to negate.
Much of the midweek talk had been about the props, line-out and that man Dylan Hartley but in truth those three facets of this one were swamped by the men out wide as Chris Ashton's brace of tries saw the Red Rose silence a hostile Cardiff.
It was a fine advert for this historic spectacle, not least because the Baa-Baas were celebrating their 120th year. It was a very happy birthday.
It wasn't pretty, it wasn't ugly either -- but it was effective as fly-half Jonathan Sexton contributed seventeen points with the boot to keep his untroubled side ahead of an uninspired Pumas outfit.