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.
Wales will be missing Liam Williams for Saturday's Six Nations clash with France due to a shoulder injury.
Wales star Taulupe Faletau says it is "hard to give your all" against the crushing contractual and financial backdrop that has engulfed Welsh regional rugby.