The Reds meet Chelsea in the Carabao Cup tomorrow night.
Klopp said of Sarri: "What a manager he is! I'm a supporter of him since I saw them playing in Naples, outstanding football. You see immediately the impact.....all my respect. Good job so far.
"He had a very interrupted pre-season and starting the season he's had an immediate impact and very good to watch.
“He's done a very good job.
“You cannot forget Chelsea in the title race - they know how it works and that's a really good, really strong football team.
"You have seen immediately the impact, he has all my respect. I don't know why people aren't talking about them. This team has experience, won title already, 80% twice, they know how it works. That is a really good, strong group."