Liverpool hero Didi Hamann feels Jurgen Klopp has been shocked by the demands of the Premier League.
Klopp saw Liverpool fall to a 3-1 defeat to Leicester on Monday, which left them with just two wins from their last 12 games in all competitions.
"The physicality and intensity is much higher in England than anywhere Jurgen Klopp has been before," Hamann told PaddyPower.
"You cannot outrun teams in the Premier League, full stop.
"That's something the players and the manager have to learn, because they can only play one way.
"You need to be flexible, variable and overall you must have two or three answers to the questions teams in this league will ask of you.
"At this moment in time, Liverpool under Klopp are one-dimensional, that's why they find it hard to win when things aren't going their way."