ROSS Moriarty replaces Dragons teammate Aaron Wainwright in Wales' back row for their World Cup clash with Fiji on Wednesday.

The number eight has had to be content with the role of impact sub in the wins against Georgia and Australia but returns to the XV for the fixture in Oita.

Warren Gatland also brings in James Davies for Justin Tipuric as Wales hunt a win that would confirm a quarter-final place and, given that they face minnows Uruguay on Sunday, secure Pool D top spot.

Josh Navidi moves from number eight to blindside in the back row reshuffle.

Davies, meanwhile, will line up alongside his brother - centre Jonathan - as Wales target a third successive World Cup victory over Fiji.

Fly-half Dan Biggar, who failed a head injury assessment during the Wallabies clash in Tokyo eight days ago, is fit to resume.

If Wales beat Fiji and then defeat Uruguay next Sunday, they will reach the last-eight as unbeaten group winners for the first time in a World Cup campaign since 1987.

Among the replacements, Gatland has named Saracens prop Rhys Carre, who made his Test debut during Wales' World Cup warm-up Tests.

And flanker Aaron Shingler will again provide second-row cover for Jake Ball and captain Alun Wyn Jones, with Wainwright as the back-row substitute.