Liverpool manager Jurgen Klopp believes that only world class signings can improve his squad.
Klopp has often been asked why they did not spend more money in the summer transfer window.
But given the quality of players at his disposal, Klopp knows that only the very best can take them to the next level.
"In football, there are two ways to improve," Klopp told the Liverpool Echo's Paul Gorst.
"One is to sign good players and the second is training, but having time together is always good. You don't have time together in football, usually, but we had it then, which was really good.
"We don't start at minus 20 and say 'by the way, set-piece, we do this, we do that' and you have to explain to six players and you think 'oh God!'.
"Having a basis is brilliant, but you need world-class players and if they are not world-class already, they need the world-class potential.
"That is what we need at a club like Liverpool."
