Cory Hill has become the latest player to withdraw from Wales' preliminary World Cup training squad.
Wales have released prop Rhys Carre from their Rugby World Cup squad after announcing he "failed to meet individual performance targets".
Rhys Webb has become the latest Wales player to announce his retirement from Test rugby before the World Cup.
Wales great Alun Wyn Jones will captain Eddie Jones' Barbarians in their fixture against the World XV at Twickenham on Sunday.
Alun Wyn Jones, the world's most-capped rugby union player, has announced his retirement from the international game.
Wales and Cardiff flanker Josh Navidi has been forced to announce his immediate retirement from rugby because of a serious neck problem.