Wales have drafted in Cardiff Blues winger Owen Lane as a squad replacement for back-rower Josh Navidi ahead of the Rugby World Cup semi-final against South Africa.

Powerhouse Navidi was ruled out after sustaining a hamstring injury in the edgy 20-19 last-eight triumph over France in Oita on Sunday.

With Wales well stocked in the back row, head coach Warren Gatland has opted to bolster his backs.

Centre Jonathan Davies was a late withdrawal against France due to a problematic knee injury, while Hadleigh Parkes has been playing through a broken bone in his hand and a shoulder complaint.

Lane has just one Wales cap to his name, that coming against Ireland in August.

Wales will be without Josh Navidi for the rest of their Rugby World Cup campaign after the back-rower sustained a hamstring injury in the quarter-final win over France.

Warren Gatland's side secured their place in the last four with a dramatic 20-19 victory over Les Bleus, who had Sebastien Vahaamahina sent off.

Navidi had overtaken Ross Moriarty as Wales' first-choice number eight in Japan but was forced off during the first half on Sunday.

Gatland - who plans to bring in a back, rather than another forward to replace the Cardiff Blues player - has confirmed Navidi's World Cup is over.

"He'll be ruled out. He's no good," Gatland, whose side will face South Africa in the last four, told a news conference on Monday.

"We'll be looking to bring in a replacement tomorrow [Tuesday], but we've got to go through that process.

"It's disappointing for him. We'll keep him out here. It will be nice for him to stay out for the next couple of weeks. 

"It's disappointing for us to have a player ruled out. In saying that, these games are so physical to have only lost one player is a real positive for us.

"We've been pretty lucky. We're trying to keep everyone as healthy as we possibly can."

Jonathan Davies missed the quarter-final due to a knee injury, but Gatland is hopeful the centre will be available for selection on Sunday.

"He was touch and go for the weekend. He's been doing rehab and recovery," Gatland said of Davies.

"Hopefully he'll be up and running for a very light session tomorrow. We'll be doing more of the rugby on Wednesday. Hopefully he's fit and available."

Gatland claimed "the best side lost" following Wales' victory over France, but the outgoing coach was satisfied with his side's resilience and strength of character. 

"We're a bit disappointed about the performance. France played exceptionally well," he added. "I thought we showed some great character and got the win.

"Disappointed with a few aspects but looking forward it's about being excited about the semi-final of a World Cup."

Wales' Josh Navidi has vowed to embrace the captaincy role against Ireland on Saturday having been handed the chance to lead his country for the first time.

Ireland visit the Principality Stadium for Wales' final match on home soil before the Rugby World Cup, with head coach Warren Gatland ringing the changes.

He announced 14 alterations to his starting XV following the victory over England, with Navidi one of those coming into the team.

It caps a fine rise for the Cardiff Blues back-rower, who has only played 17 times for his country.

"It is a massive honour. I've had loads of messages from people, which is nice. My family are ecstatic as well, and it will be nice to lead the team out," Navidi said on Friday.

"Gats [Gatland] came up to me after a units session and asked me would I like to lead the team. It's something you can't turn down, really.

"I will try and keep the emotions down. It's another game of rugby, but obviously nice to lead the team out, embrace the moment and then get into it.

"I am not much of a talker, to be honest. Hopefully, I can lead from the front, and everyone else will follow.

"As a youngster I captained Bridgend Athletic, and my school. I have done it a bit with the Blues over the years too.

"Alun Wyn [Jones], I have played quite a lot with him recently, and obviously Gethin Jenkins and Matthew Rees at the Blues, and it's little things you pick up on through them. It just brings your game forward, and hopefully I can pass it on to others.

"But to be honest, I have never thought about it [being captain], with the leaders in the group with Wales.

"You have got Alun Wyn, Ken Owens and Jonathan Davies, who are massive figures in the team, and it's something that I've never thought I would come across - I thought just getting the red jersey is enough - so it will be nice."

Wales will face Ireland again on September 7 in Dublin for their final pre-World Cup warm-up.

Their campaign begins 16 days later, against Georgia in Toyota City.

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