Maresca told reporters: "Four or five years ago when I finished playing and started as a manager, I watched 38 games of Liverpool in one week – to study and to analyse how they were with the previous manager.
"I really know Liverpool players because I watched them many, many, many times. That team, the first one, two, three years of Klopp, the way they were pressing was especially good because of Salah, (Roberto) Firmino and (Sadio) Mane. So it is not only about on the ball. It was off the ball, the way they were aggressive was something unbelievable. I really like Salah, not only because he is good on the ball but because he is a fantastic player also off the ball.
"He has been one of the best players in the last five, six, seven years. Cole is doing that for us in the last year and also now and hopefully he can do it for the next five, 10 years with us."