Raymond Verheijen says Klopp attempted to implement his demanding style of football on Reds players too soon.
Former Wales coach Raymond Verheijen has told Omnisport that Jurgen Klopp made the mistake of trying to stamp his own style on the Liverpool squad too soon after his arrival, as quoted by beIN Sports.
The Reds went undefeated in their first four matches after the former Borussia Dortmund manager took over from Brendan Rodgers at Anfield, but won just three of 11 Premier League matches between the start of December and early February.
Verheijen, a former fitness coach with Bayern Munich and Barcelona, believes that the club's inconsistent form and continued injury problems have been caused by Klopp demanding too much too soon from his players.
Verheijen told Omnisport, as quoted by beIN Sports: "Jurgen Klopp has hopefully learned a valuable lesson at Liverpool. They implemented the style they were successful with in the first few years at Dortmund.
"But they made the classic mistake, like Louis van Gaal [at Manchester United] – they implemented their approach irrespective of the circumstances. Liverpool used to play a passing game with Brendan Rodgers. When you implement a more demanding pressing game, the bodies of the players need time to adapt.
"But if Jurgen Klopp had analysed the situation when he started, he'd have realised they were about to play the most games of anyone in Europe. He implemented a more demanding pressing game in a period when players had less time to recover. What you ask from the players is to recover from more fatigue in a shorter space of time. You don't have to be Einstein to work out that that's impossible."
Klopp's side appear to have recovered from their poor run of mid-season form and have won their last three Premier League matches, with their only defeat in the last six games coming on penalties in the League Cup final to Manchester City.
Liverpool host Manchester United in the first leg of their Europa League last-16 clash on Thursday.