England Head Coach Stuart Lancaster has announced a 27-player squad to prepare for Saturday's match against Argentina.
Geoff Parling has completed the graduated return to play from concussion protocol without complication and he and Alex Corbisiero, who has recovered from a knee injury, return for Dave Attwood and Mako Vunipola.
Rob Webber is on standby for Tom Youngs, whose wife is expecting their first child.
"We have thoroughly reviewed the Australia game and we are determined to build on the momentum that victory has given us," said Lancaster.
"Training today has been very intense and there is a massive competition because everyone is desperate to be in the team.
"There are a couple of changes to the squad with Geoff and Alex back and it's great they are back in the mix. Mako is unfortunately struggling with a ligament strain to his knee and is not available for selection this week.
"We have named an extended squad as we need a further 24 hours to assess one or two minor niggles in the build-up to team announcement on Thursday morning."
Dan Cole, Alex Corbisiero, Dylan Hartley, Joe Launchbury, Courtney Lawes, Joe Marler, Ben Morgan, Geoff Parling, Chris Robshaw, Billy Vunipola, Rob Webber, David Wilson, Tom Wood, Tom Youngs
Chris Ashton, Mike Brown, Luther Burrell, Danny Care, Lee Dickson, Owen Farrell, Toby Flood, Ben Foden, Joel Tomkins, Billy Twelvetrees, Marland Yarde, Ben Youngs, Christian Wade
The following 10 players have been released back to their Aviva Premiership clubs ahead of this weekend's LV= Cup Round 1:
Dave Attwood, Freddie Burns, Kyle Eastmond, Alex Goode, Tom Johnson, Matt Kvesic, Henry Thomas, Henry Trinder, Mako Vunipola, Anthony Watson