• All Whites captain Winston Reid (Getty Images)
Calm, confident and relaxed, skipper Winston Reid says it's how the All Whites respond to pressure that will determine the outcome of Saturday's crucial World Cup play-off against Peru.

Sitting 10th in the world, Peru are hot favourites to take out the home-and-away tie, but the 122nd-ranked New Zealanders nevertheless believe they can match the South American heavyweights at Westpac Stadium in Wellington.

Fronting media on Friday with coach Anthony Hudson and striker Chris Wood, Reid says confidence is high in the Kiwi camp.

But it will take more than starry-eyed belief for the All Whites to progress through Saturday's game, and the return match in Lima on Wednesday, into next year's World Cup in Russia.

"There's going to be moments that we're going to have the upper hand, and there's going to be moments where the other team's going to have the upper hand," Reid said.

"I think it's just about managing those situations, and trying to steer the ship through those waters."

And that's where Reid's experience, and that of striker Wood, could prove key.

"We've got a good senior group here," Reid said.

"There's going to be tricky moments out there, so it's just about giving the young players guidance and leading by example."

He says the All Whites are looking forward to testing themselves against the South American style and quick, technical players Peru will bring.

"We've done our homework - they're going to come at us, and we're going to be ready for them."