Bath wing Anthony Watson has joined the 25-man England squad for the training camp in central London.
The 22-year-old sustained a hamstring injury during the training camp in Portugal ahead of the Six Nations opener against France and a scan conducted on it revealed slight muscular strain which needed three to four weeks of rehabilitation.
Head coach Eddie Jones has also retained Northampton prop Paul Hill while Wasps' Matt Mullen has been left out. Saracens prop Mako Vunipola will return to action for his club next week in a bid to prove his fitness.
England are currently at the top of the table with wins against France and Wales in the opening two rounds and are lined up to take on Italy next on 26th February.
England 25-man squad for this week's training camp in London:
Forwards: J Clifford (Harlequins), D Cole (Leicester), E Genge (Leicester), J George (Saracens), D Hartley (Northampton), J Haskell (Wasps), P Hill (Northampton), N Hughes (Wasps), M Itoje (Saracens), J Launchbury (Wasps), C Lawes (Northampton), J Marler (Harlequins), K Sinckler (Harlequins), T Wood (Northampton).
Backs: M Brown (Harlequins), D Care (Harlequins), E Daly (Wasps), O Farrell (Saracens), G Ford (Bath), J Joseph (Bath), J May (Gloucester), J Nowell (Exeter), B Te'o (Worcester), A Watson (Bath), B Youngs (Leicester).
Our 6 Nations cover is sponsored by Allett Mowers