He told Liverpoolfc.com: "I think we have the best goalie squad Liverpool has had in its history.
"Ali (Alisson Becker) is probably the best in the world, I would say, and what (Caoimhin) Kelleher shows is a massive level as well. He is showing the same high level.
"Kelleher is unreal. When we signed him when he was 16, he was agile but technically not very good. He was not tall either, so you take a bit of a gamble.
"The development of that man has been unbelievable and how he has improved. Obviously the goalie coaches in the Academy worked with him as well.
"Every time I thought one was ready to come up, I brought them up.
"Marcelo (Pitaluga) has been out on loan, Vitezslav Jaros has done really well. Harvey (Davies) was U9 I think when we signed him and then made it up to the first team, played in friendlies."