Northampton Saints centre George Pisi has been given a six-week ban following a tackle while playing for Samoa against Ireland on Saturday.
Pisi was cited for a dangerous tackle on Ireland wing Tommy Bowe during Samoa's 40 points to 9 defeat in Dublin.
The ban means he'll miss three Premiership matches, plus Saints' European double-header against Leinster.
Meanwhile Saints and England prop Alex Corbisiero has been ruled out of Saturday's match against New Zealand after a reoccurrence of a knee injury.
The 25-year-old was rated as a doubt and has now failed to sufficiently prove his fitness.
Northampton Saints' match against Gloucester could be a chance for a few new faces to impress.
It's likely to be youthful team that steps out in the Anglo-Welsh cup tomorrow while their team-mates are away on international duty.
Earlier this week the Saints, including youngster Ben Nutley, took a break from training to try some go-karting at one of the town's circuits.
Norfolk-born Ben Youngs has been ruled out of England's autumn international against Argentina on Saturday after failing a fitness test.
The Leicester Tigers man has been suffering with a hip injury and has been deemed to not be fit enough to take his place on the replacements bench for the clash with the Pumas.
24-year-old Youngs has been replaced by Harlequins scrum-half Danny Care.
Northampton Saints captain Dylan Hartley has been recalled to the England starting line-up for this weekend's clash with Argentina at Twickenham.
The 27-year-old replaces Tom Youngs at hooker as part of a new look front row which will also include Joe Marler and David Wilson.
Hartley is one of five Saints to be included in the side, with Lee Dickson, Courtney Lawes and Tom Wood retaining their places from last weekend's triumph over Australia, and Ben Foden stepping up from the replacements' bench to take his spot on the wing in place of the injured Marland Yarde.
Northampton prop Alex Corbisiero makes his return to the bench after recovering from a knee injury, whilst Norfolk-born Tom and Ben Youngs are also amongst the substitutes.
England team to face Argentina:
Mike Brown (Harlequins), Chris Ashton (Saracens), Joel Tomkins (Saracens), Billy Twelvetrees (Gloucester), Ben Foden (Northampton Saints), Owen Farrell (Saracens), Lee Dickson (Northampton Saints)
Joe Marler (Harlequins), Dylan Hartley (Northampton Saints), David Wilson (Bath), Joe Launchbury (London Wasps), Courtney Lawes (Northampton Saints), Tom Wood (Northampton Saints), Chris Robshaw (Harlequins, captain), Billy Vunipola (Saracens)
Replacements: Tom Youngs (Leicester Tigers), Alex Corbisiero (Northampton Saints), Dan Cole (Leicester Tigers), Geoff Parling (Leicester Tigers), Ben Morgan (Gloucester), Ben Youngs (Leicester Tigers), Toby Flood (Leicester Tigers), Alex Goode (Saracens)
Northampton Saints winger George North has been named in the Wales side for this weekend's opening autumn international against South Africa.
The 21-year-old has been a regular in the welsh line-up since making his debut in 2010, and performed a starring role in this summer's Lions series.
North will take up his usual position on the wing, with debutant Eli Walker also part of the back three.
Wales team to face South Africa:
Leigh Halfpenny (Cardiff Blues), George North (Northampton Saints), Jonathan Davies (Scarlets), Scott Williams (Scarlets), Eli Walker (Ospreys), Rhys Priestland (Scarlets), Mike Phillips (Unattached).
Gethin Jenkins (Cardiff Blues), Richard Hibbard (Ospreys), Adam Jones (Ospreys), Bradley Davies (Cardiff Blues), Alun Wyn Jones (Ospreys), Dan Lydiate (Racing Metro), Sam Warburton (Cardiff Blues, captain), Toby Faletau (Newport Gwent Dragons)
Northampton Saints director of rugby Jim Mallinder says that he is "delighted" for his England stars, despite them being unavailable for selection for the next few weeks of the Aviva Premiership campaign.
Courtney Lawes, Tom Wood and Lee Dickson have all been named in England's starting line-up for Saturday's clash against Australia at Twickenham, whilst Dylan Hartley and Ben Foden are amongst the replacements.
As a result, the quintet will all be missing for Northampton's trip to London Irish on Sunday as the Saints look to maintain their impressive start to the season.
Northampton Saints stars Lee Dickson, Courtney Lawes and Tom Wood have all been named in England's starting line-up for Saturday's crunch clash with Australia at Twickenham.
Lawes, who has made a blistering start to the Aviva Premiership season, has been rewarded for his fine form with a place in the second row alongside Joe Launchbury, whilst 26-year-old Wood keeps his spot at flanker.
Lee Dickson has been preferred at scrum-half to Leicester Tigers' Ben Youngs.
Meanwhile, Northampton captain Dylan Hartley will have to settle for a place on the bench after Tom Youngs was named at hooker.
Ben Foden has also been selected as one of the replacements.
England team to face Australia: Mike Brown (Harlequins), Chris Ashton (Saracens), Joel Tomkins (Saracens), Billy Twelvetrees (Gloucester), Marland Yarde (London Irish), Owen Farrell (Saracens), Lee Dickson (Northampton Saints)
Mako Vunipola (Saracens), Tom Youngs (Leicester Tigers), Dan Cole (Leicester Tigers), Joe Launchbury (London Wasps), Courtney Lawes (Northampton Saints), Tom Wood (Northampton Saints), Chris Robshaw (Harlequins), Billy Vunipola (Saracens)
Replacements: Dylan Hartley (Northampton Saints), Joe Marler (Harlequins), David Wilson (Bath), Dave Attwood (Bath), Ben Morgan (Gloucester), Ben Youngs (Leicester Tigers), Toby Flood (Leicester Tigers), Ben Foden (Northampton Saints)
England lock-forward Courtney Lawes retains his place in a Northampton Saints side showing four changes for their latest Aviva Premiership game against Harlequins tomorrow (Friday). The 24 year old hopes he can stay injury free for club and country this season. See Donovan Blake's report.
Northampton Saints players Ben Foden and Lee Dickson joined teammates and other sport stars to support the local charity 'Niamh's Next Step'. The event, at Whittlebury Hall near Silverstone, was to raise funds for research into the brain disease neuroblastoma. See Donovan Blake's report.
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