Manchester City hero Sergio Aguero believes Julian Alvarez can become a world-class player at the Etihad.
The Argentina forward was bought by City in January and loaned immediately back to River Plate.
"Julian has all the conditions to succeed at City," Aguero told Stake.com.
"He has already shown it in the two games he played in which he even scored a goal and against Liverpool no less.
"He is a quiet boy who seems shy but when it comes to training and going out to compete, he is one of the best.
"He works very hard, he gives everything and doesn't stop running. He is a locomotive and very eager to grow. The advice is to be himself. Let him listen and try to absorb all the teachings. With that and his ability, he will be able to compete at the best level."