Cape Town - England coach Eddie Jones has retained 25 players in his squad to prepare for their November Test opener against South Africa at Twickenham on Saturday.
England are looking for their first win against the Springboks since 2006.
Forwards Charlie Ewels (Bath), Ellis Genge (Leicester), Teimana Harrison (Northampton) and Ben Morgan (Gloucester) return to their clubs.
As do backs Alex Goode (Saracens), Mike Haley (Sale Sharks), Alex Lozowski (Saracens), Semesa Rokoduguni (Bath) and Henry Slade (Exeter).
Jones will name his side to face South Africa on Thursday for the first of four games in their end-of-year series.
The remaining players include four who have not been capped by England - Josh Beaumont, Nathan Hughes, Kyle Sinckler and Ben Te'o.
Forwards: Dave Attwood, Josh Beaumont, Dan Cole, Jamie George, Dylan Hartley, Nathan Hughes, Joe Launchbury, Courtney Lawes, Joe Marler, Chris Robshaw, Kyle Sinckler, Tommy Taylor, Billy Vunipola, Mako Vunipola, Tom Wood
Backs: Mike Brown, Danny Care, Elliot Daly, Owen Farrell, George Ford, Jonathan Joseph, Jonny May, Ben Te’o, Marland Yarde, Ben Youngs