England have called Elliot Daly and Kyle Sinckler into their training squad for the first time in this year's Six Nations.
The pair are present among a group of 27 players who will be involved in camps scattered across the south of England because of freezing weather conditions.
Wasps' Daly is recovering from a calf problem sustained after he had injured his ankle, the ailment that prevented him from appearing in the victories over Italy and Wales.
Sinckler has overcome a torn hamstring to make his comeback for Harlequins and is now in contention to supply tighthead cover for prop Dan Cole.
All 23 of the matchday squad that lost 25-13 to Scotland at Murrayfield on Saturday are present, with the addition of James Haskell and Charlie Ewels lifting the number to 27.
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England have said that the focus of the training camps will be on reconditioning rather than rugby.
