Wales boss Rob Howley has described Liam Williams as "probably a left-wing who can play full-back" after making another switch of positions with Toulon star Leigh Halfpenny.
Many pundits view full-back as the best role for Williams, who looks set to join English and European champions Saracens next season and is rated as a British and Irish Lions certainty in New Zealand next summer.
He started in the number 15 shirt when Wales claimed a tense 33-30 victory over Japan last weekend, with Halfpenny on the wing, but those roles have been reversed for South Africa's Principality Stadium visit on Saturday.
Rob Howley will today unveil his Wales squad for the forthcoming autumn internationals.
The former Wales scrum half has stepped in as head coach for the rest of the season as Warren Gatland focuses on the 2017 Lions tour of New Zealand.
- Wales v Australia - Saturday 5th November, 14:30.
- Wales v Argentina - Saturday 12th November, 17:30.
- Wales v Japan - Saturday 19th November, 14:30.
- Wales v South Africa - Saturday 26th November, 17:30
Warren Gatland says he's "confident" ahead of Wales' final autumn series clash against Australia next Saturday.
His side have now won two autumn internationals on the bounce - after having gone four years without one - but failed to score a single point in the second half of yesterday's 17-7 win against Tonga.
"I think we've got to be confident," he said.
"We've got to look forward to it. We were very disappointed with the first game (against South Africa).
"We were behind and got back into it, showed some character in terms of dealing with injuries and I know in the past we wouldn't have been able to do that.
"If we can win next week and finish with three from four I think that would be a satisfactory autumn."
Warren Gatland says last night's Autumn International against Tonga was "a little bit frustrating", as he watched his side score two first half tries on their way to 17-7 win, before failing to score in the second half.
"It's a win. It was a little bit frustrating. Tonga tried to slow the game down and frustrate us and they pretty much did a good job of it," he said.
"It was a good start, a positive start, I think the ambition was there. We got across the try line, I think, four times. Unfortunately we weren't able to convert those close chances.
"We probably weren't quite as clinical as we needed to be, but for a lot of those players it was their first time together and I can't fault the effort in terms of the ambition.
"We're not that pleased with the performance but it's a win and maybe in the past those are the games we might have succumbed."
Wales clinched a 17-7 win against Tonga at the Millennium Stadium this evening. First half tries from Owen Williams and Ashley Beck gave the home side the early lead. Tonga fought back with a try just after the half hour mark, but Wales' lead was otherwise untroubled.
Hallam Amos came close to scoring after the break. Neither team managed to score in the second half, but it was the win Warren Gatland would have wanted in what was his 100th game in charge as an international manager.
Wales forward Andrew Coombs has been forced out of tonight's meetingtonga with a back problem.He has been replaced in the starting XV by Dan Lydiate with Alun Wyn-Jones joining the substitutes.Coombs had been a doubt since Rob Howley revealed yesterday that hemissed training.
Rugby fan Logan James, 10, was picked as mascot for tonight's match between Wales and Tonga at the Millennium Stadium.
His parents filmed his reaction when he finds out the news that he'll walk onto the pitch with his heroes. As you can imagine, he was over the moon!
Watch the video:
Warren Gatland takes charge of his 100th international game tonight as Wales take on Tonga at the Millennium Stadium.
Speaking at a press conference yesterday, assistant coach Rob Howley said Gatland has had a big influence on the performances of both the team and coaches.
Newport Gwent Dragons back Hallam Amos will make his Wales debut in Friday night's clash against Tonga at the Millennium Stadium.
The 19 year-old is among 11 changes from the side which claimed a record 40-6 victory against Argentina.
The four survivors are Leigh Halfpenny, George North, Rhodri Jones and Justin Tipuric. Ryan Jones is Captain.