Rugby World Cup: All Blacks vow to hold nothing back in final warm-up clash against arch-rivals South Africa

Four years ago, the build up to the 2019 Rugby World Cup was undermined by the All Blacks and South Africa appearing to hold back before the tournament began.

On Saturday, when both sides meet at London's iconic Twickenham, there won't be any repeat.

With the World Cup in France just weeks away, both the All Blacks and Springboks will face off in their final pre-tournament hit out, as each try to win the Webb Ellis Cup for the fourth time.

The All Blacks celebrate.
The All Blacks celebrate. Photo credit: Getty Images

The latest round of World Cup warm-up matches have proved more obstructive than beneficial for some teams.

Hosts France lost first-five Romain Ntamack to a knee injury against Scotland, while England will likely be without Owen Farrell and Billy Vunipola, shown red cards against Wales and Ireland respectively.

The All Blacks aren't unaffected, with Brodie Retallick to miss the tournament opener with a knee injury suffered against Australia in Dunedin, but forwards coach Jason Ryan insists holding back in their final hitout is not the answer. 

"You've got to have a dominant mindset," said Ryan. "When you're hesitant in anything you do, that's when injuries happen.

"That's how we're going to prepare. We've shown plenty of our game - as other teams have.

"There's eight views per game, so everyone's having a good look. 

"You've still got to get those momentum shifts and those big pressure moments, which I think are quite important in test matches, especially heading into that World Cup, which is right here now.

"It's no juggling act, we'll just pick our best team available. We're looking forward to a big physical contest against the Springboks - that's exactly what we need heading into our first game.

"You're always going to get injuries. Your squad is always going to be tested, so you've got to make sure you've got guys who can cover multiple positions, which we feel we have."

With four victories from four tests already this year, the All Blacks can claim the upperhand, before a ball is kicked on Saturday.

Argentina, South Africa and Australia - twice - have all been unable to stop coach Ian Foster's side throughout the Rugby Championship and Bledisloe Cup, but despite their dominance, Ryan knows there's still more to come from his side.

With a World Cup opener against hosts France on the horizon, nothing that's come before matters for the All Blacks. 

"The season to date has been OK, but it's actually irrelevant now," Ryan continued. "The Rugby Championship and Bledisloe are nothing more than a good memory.

The All Blacks celebrate against South Africa.
The All Blacks celebrate against South Africa. Photo credit: Getty Images

"This World Cup, we've got to keep evolving our game. Tradition shows the team that evolves their game the most will hold the trophy up.

"There's some areas around our breakdown we can keep working on. Defensively, we're making some good progress as well."

The All Blacks open the Rugby World Cup against France on September 9 (NZ time), while South Africa face Scotland in their first match on September 11. 

Join Newshub at 6:30am Saturday for live updates of the All Blacks v Springboks World Cup warm-up