Wales series 8 Taulupe Faletau faces a aptness exam on Wednesday forward of a Six Nations opener opposite Italy on Sunday, 5 February.
The 26-year-old Bath back-rower has not played given Christmas Eve after pang a knee injury.
Faletau done usually one deputy coming for Wales in November.
“We’re really carefree he’ll be fit for Sunday, though if not fit we’ll have somebody else be penetrating and prepared to go,” pronounced counterclaim manager Shaun Edwards.
“If not [fit to face Italy], hopefully he’ll be fit for England [on Saturday 11 February].
“You wish your best players fit and ready, and we all saw what a illusory impact he had in a South Africa diversion when he came off a bench.”
Faletau’s miss of new game-time increases a chances of Sam Warburton, Justin Tipuric and Ross Moriarty combining a starting behind quarrel in Rome.
Asked if it would be reduction expected Faletau would start since of his injury, Edwards said: “It’s adult to [head coach] Rob [Howley] to decide, though my suspicion would be yes, substantially it is.
“His impact off a dais was positively unusual opposite South Africa.”
Uncapped Dragons’ wing Ashton Hewitt has nonetheless to sight with Howley’s patrol since of concussion checks.
Wales are due to name their group on Thursday 2 February.