Liverpool's coaching staff have been helping goalkeeper Loris Karius adapt to English football by using rugby tackling pads to toughen him up.
Goalkeeping coach John Achterberg has been pictured during training at Melwood challenging Karius, 23, for high crosses with the pads in order to replicate the physical nature of the Premier League.
The £4.7 million summer signing from Bundesliga side Mainz was confirmed as Liverpool's first-choice goalkeeper last month but has endured a mixed start to his career at Anfield, with teams looking to exploit his hesitancy to command the box.
"John Achterberg usually does it with his hands but it's better to use something else!" Klopp responded when asked about using the tackle pads. "Of course that's important. There are different things you have to do as a coach.
"First, as a keeper you have to learn the technique then you have to adapt to the real circumstances -- having six, seven players around you. No one gets out of your way. It is completely the opposite. They want to disturb your way.
"That wasn't a specific preparation for Crystal Palace. It was specific training for goalkeepers in the Premier League. West Brom was the same, it was pretty much the same against Manchester United. That's goalkeeping life. You can't change this.
"You can't say: 'No long balls in the box and if there are then immediately whistle.' That's not how it works so we need to prepare the boys and that's what John is doing."