James Hook is one of 15 players to be released from the Wales squad
Wales have released 15 players back to their regions and clubs ahead of their respective matches this weekend.
Eight players will head back to their Welsh regions with Josh Turnbull and Liam Williams returning to the Scarlets and Alun Wyn Jones and James King released back to the Ospreys.
The quartet of Scott Andrews, Lou Reed, Josh Navidi and Andries Pretorius return to the Blues.
As per IRB regulations, Paul James (Bath), Craig Mitchell (Exeter Chiefs) and Olly Kohn (Harlequins) have been released back to their clubs as have Gethin Jenkins (Toulon), Mike Phillips (Bayonne), Lee Byrne (Clermont Auvergne) and James Hook (Perpignan).
The players will return back to the Wales RBS 6 Nations squad on Monday, 18 February.
Defence coach Shaun Edwards believes Saturday's clash against England - the 'form team in world rugby' - poses a huge challenge for his side but he is confident, with Wales beginning to show the defensive qualities displayed in the last two World Cups,
At the official launch of this season's RBS 6 Nations at a noisy location in London this morning, Wales captain Alun Wyn Jones reveals he is personally proud to be in the Wales team and is already looking forward to the opening clash against Italy which is a 'tough ask'.
It was a double celebration for Wales and Ospreys scrum-half Rhys Webb when he called at the home of Welsh rugby to help commemorate the first anniversary of Principality Stadium and his return to fitness this weekend ahead of the RBS 6 Nations.