Klopp wasn't happy with the fitness levels when he arrived alright. Primarily as the fitness regime before was progression based, in order to have the players peaking at the end of the season. Whereas Klopp wanted peak fitness instantly to play his heavy metal football, where you need to run everywhere yesterday.
I have nothing against either approach, but his first game against Spurs showed the benefits and consequences of the new regime, where everyone ran around like tigers for the first half hour, and walked around like tortoises for the rest of the game. Since then, the players have learned to adapt, and this new appointment should help maintain the levels he wants and we need, ready from Day 1.
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