Since switching to a more attacking, box-to-box midfield role, the England man has been one of his team's star performers.
"I've said it since the first day I arrived and my opinion hasn't changed: he's a fantastic skipper for this team," Klopp told Sky Sports.
"On and off the pitch, he's fantastic.
"He's played so many positions - which I forced him to do - and he was still very, very important. There was not one part of him that was not important.
"In the last three games he's obviously on fire, which is good."