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.
Robin McBryde and son Billy are set to represent Wales on either side of the globe over the coming weeks with Robin travelling to New Zealand as Wales assistant coach and Billy competing at the World Rugby U20 Championship (Manchester, June 7-25). WRU TV caught up with the pair and captured a unique perspective into the factors that produce such a high-achieving rugby family.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.