The famous faces of Kieran Read, Beauden Barrett and Ben Smith, aren't the faces Buenos Aires locals are interested in.

Instead, it's All Blacks prop Charlie Faumuina who is being inundated with photo and signature requests from the Argentina faithful.

The All Blacks touched down in the South America yesterday, preparing for their second test against the Pumas in the 2016 Rugby Championship.

Despite Faumuina's new found fame, he's skeptical about the motives behind his popularity.

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"I don't know if they actually know me," he said. "It's probably just because I'm the biggest guy in the team they just want to take pictures with me."

His teammates made sure he got an earful, with Sam Whitelock suggesting he should seek out some sponsorship deals during his stay.

Faumuina played just 27 minutes in Christchurch last weekend against the Sprinboks and looked to be in discomfort after a heavy tackle.

He didn't train with the squad today but dimissed the injury's seriousness.

"Just a little bit of a niggle on the ankle. It's just maintenance. I'll just avoid some of the sessions and get a break."

The All Blacks will be looking to get their 16th straight victory in Buenos Aires on Sunday morning (NZT).