Rafa Benitez Benitez coached Liverpool winger Philippe Coutinho during his time at Inter Milan.
"He's a very good player, and he will be fine going forward," said Benitez.
"He's in a top side. He was 18 when I worked with him.
"He was a very shy boy, but you could see that potential in training and you could see with his runs even then he gave the senior players problems trying to stop him."