Cory Hill has been named in Wales' 31-man World Cup squad despite suffering from a leg fracture.
Dragons lock Hill, who captained his country in two Tests against Argentina last year, could be unavailable until halfway through Wales' pool schedule. He has not played since February.
But Wales head coach Warren Gatland has selected him for Japan, while fly-half Rhys Patchell also features following his try-scoring exploits against Ireland on Saturday.
Two of the more surprising omissions were props Rob Evans and Samson Lee.
Squad members learnt of selection via a video produced by the Welsh Rugby Union when each player was told by a member of their community club that they had been chosen.
It will be lock Alun Wyn Jones' fourth World Cup, with wing George North and hooker Ken Owens featuring in the tournament for a third time.
There are call-ups for Saracens prop Rhys Carre, who made his Test debut against Ireland, and Scarlets flanker James Davies.
Gatland has opted for a split of 13 backs and 18 forwards, which includes three centres, two fly-halves and five props.
Other players to miss out include Owen Lane, Jonah Holmes, Scott Williams, Jarrod Evans and Bradley Davies.
In Pool D, they will have to compete against Georgia, Australia, Fiji and Uruguay.
Their opening fixture comes on September 23rd, where they face Georgia in Toyota City.
The official Wales World Cup squad is as follows:
Forwards: Jake Ball, Adam Beard, Rhys Carre, James Davies, Elliot Dee, Ryan Elias, Tomas Francis, Cory Hill, Alun Wyn Jones, Wyn Jones, Dillon Lewis, Ross Moriarty, Josh Navidi, Ken Owens, Aaron Shingler, Nicky Smith, Justin Tipuric; Aaron Wainwright.
Backs: Josh Adams, Hallam Amos, Dan Biggar, Aled Davies, Gareth Davies, Jonathan Davies, Leigh Halfpenny, George North, Hadleigh Parkes, Rhys Patchell, Owen Watkin, Liam Williams; Tomos Williams.
