England call for front row cover
Bath hooker Rob Webber and Sale prop Henry Thomas have both been added to the England squad as injury cover.
Webber will provide cover for Northampton Saints hooker Dylan Hartley who is struggling with an ankle injury, whilst Thomas will provide back-up for Bath prop David Wilson who has a calf strain.
Both players travelled to South America with the England squad in June and have been called up fom the England Saxons squad.
The 21-year-old former England Under-20 prop Thomas made his Test debut against the Pumas in Salta, whilst Webber scored a try in the victory over Argentina in Beunos Aires.
England coach Stuart Lancaster is set to name his team to face Australia at Twickenham this weekend on Thursday, and they will take on Argentina and New Zealand in the weeks that follow.
England squad: David Attwood, Dan Cole, Alex Corbisiero, Tom Johnson, Dylan Hartley, Matt Kvesic, Joe Launchbury, Courtney Lawes, Joe Marler, Ben Morgan, Geoff Parling, Chris Robshaw, Henry Thomas, Billy Vunipola, Mako Vunipola, Rob Webber, David Wilson, Tom Wood, Tom Youngs, Chris Ashton, Mike Brown, Freddie Burns, Luther Burrell, Danny Care, Lee Dickson, Kyle Eastmond, Owen Farrell, Toby Flood, Ben Foden, Alex Goode, Henry Trinder, Joel Tomkins, Billy Twelvetrees, Christian Wade, Marland Yarde, Ben Youngs.