The All Blacks warmly greeted the final whistle after they beat Argentina 20-16 in their Rugby Championship match in Buenos Aires on Sunday morning.

The All Blacks fought off two lineouts in the final minute, and finally got a chance to celebrate when the Pumas turned the ball over in a ruck close to their line after the full time hooter.

Since November 16, 2009, the All Blacks have been the pinnacle of men's international rugby.

However, their reign could come to an end should they be tipped up by Argentina in their opening game of the Rugby Championship.

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If the Pumas beat the All Blacks by more than 15 points in Buenos Aires, the New Zealand side would lose their No 1 ranking to Wales, who would take over the mantle for the first time in their history, Wales Online reports.

Here's what else you need to know ahead of the All Blacks' first test of the year.

All Blacks v Argentina, Sunday July 21, 6.05am kickoff (NZT)

It certainly isn't the most experienced All Blacks team you'll ever see, with five players yet to make their debut included in the match day 23. Sevu Reece starts on the right wing in his debut, while Atu Moli, Braydon Ennor, Josh Ioane and Luke Jacobson are poised to make their mark on the game off of the bench.

The Sam Cane-captained side will meet a Pumas outfit extremely familiar with one another, with many of the players fronting from the Jaguares during the Super Rugby season. Of the 23 selected for the game by coach Mario Ledesma, only three do not play for the country's only Super Rugby franchise, with No10 Nicolas Sanchez (Stade Francais), tighthead prop Juan Figallo (Montpellier) and reserve halfback Felipe Ezcurra (Leicester) earning a spot in the side.

The All Blacks have won 27 of the 28 previous meetings between the two sides, with a solitary draw in 1985.

Team lists

All Blacks:

Ben Smith, Sevu Reece, Anton Lienert-Brown, Ngani Laumape, Jordie Barrett, Beauden Barrett, Aaron Smith, Ardie Savea, Sam Cane (c), Vaea Fifita, Patrick Tuipulotu, Brodie Retallick, Angus Ta'avao, Dane Coles, Ofa Tuungafasi

Reserves:

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Liam Coltman, Atu Moli, Nepo Laulala, Jackson Hemopo, Luke Jacobson, Brad Weber, Josh Ioane, Braydon Ennor.

Argentina: Emiliano Boffelli, Matias Moroni, Matias Orlando, Jeronimo de la Fuente, Ramiro Moyano, Nicolas Sanchez, Tomas Cubelli, Javier Ortega Desio, Marcos Kremer, Pablo Matera, Tomas Lavanini, Guido Petti, Juan Figallo, Agustin Creevy, Nahuel Tetaz Chaparro.
Reserves: Julian Montoya, Mayco Vivas, Santiago Medrano, Matias Alemanno, Tomas Lezana, Felipe Ezcurra, Joaquin Diaz Bonilla, Joaquin Tuculet.

How to watch

The Herald will be live blogging the match and Radio Sport will have live commentary. Sky coverage starts at 5.30am on Sky Sport 1.

TAB odds

New Zealand $1.19
Argentina $4.70