The Liverpool boss spoke about Manchester United’s record signing, and revealed that he was stunned by the Frenchman.
Klopp was not really stunned at the massive price-tag attached to the 23-year-old, but he was surprised at the Frenchman’s athleticism.
He revealed that he has seen Pogba produce world-class performances from minimal training and effort – something that he believes is a mistake, as the Premier League is very demanding.
“We all saw Paul Pogba. He was here, he was there, selfie, selfie, 9,000 of them, all summer,” Klopp told the Daily Mail.
“And then he comes to Manchester United, has, what, two training sessions, and plays 90 minutes against Southampton. You think, how?
“They’re different. Diego Maradona was different. He never really trained. He would warm up with his shoes undone.
“I saw him playing in Stuttgart with Napoli when I was 21. Watching him warm up, I could not close my mouth. It was so low intensity.
“He was walking. And then he went and outplayed the whole stadium. Unbelievable.”
Paul Pogba was given an extended break following his appearances in the Euro 2016, where he helped his nation reach the final, but lost out to Portugal.
The Frenchman was one of four additions to the Manchester United squad this summer, as Mourinho also completed the signings of Henrikh Mkhitaryan, Zlatan Ibrahimović, and Eric Bailly.
Pogba has already made two appearances for Manchester United, and is expected to start in the upcoming Manchester Derby.
Jose Mourinho will be hoping to win against their neighbors next weekend and secure his fifth consecutive win as Manchester United boss.
However, the Special One will be up against his old foe Pep Guardiola, who has had an equally impressive start to the season with Manchester City.
The Citizens are will be without their main striker Sergio Aguero, however, as he begins serving his three-match ban for violent conduct.