Demichelis is a big fan of his fellow Argentine.
He told mancity.com: "His last season was outstanding, he showed a huge personality, too. In Pep's team, central defenders are in a sensitive situation, playing always high, exposed.
“You have to be brave and clever and have a great ability to read the game at every moment because you always have your back uncovered.
“You have to be brave - and Nico is. One of his strengths is his ability to anticipate at all levels.
“He's not a physical central defender by the Premier League standards, so he has to anticipate in every action, and he has everything to do it.
“I think he is in the best moment of his career."
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