The New Zealand-born back Gareth Anscombe is set to make his World Cup debut for Wales and his first Test start for the Welsh for this weekend's World Cup Pool A decider against Australia at Twickenham.
Anscombe, who was called into the squad earlier in the tournament due to injuries, will start at fullback.
Coach Warren Gatland has made six changes, including moving powerhouse winger George North to centre in one of two positional switches.
Gatland says Anscombe is cool headed and he brings confidence and assurance to the position.
The winners of Sunday morning's game will top the group and avoid South Africa in the quarter-finals.
Wales and Australia have already qualified for the quarter-finals.