That is in stark contrast to Merseyside rivals Everton, who have splashed out close to £100m, while fellow top-four hopefuls Manchester United and Arsenal have also strengthened their playing ranks.
Klopp insists that Liverpool will continue to go about their business at their own pace, however, claiming that he does not pay attention to the spending of others.
"If any fans think, 'What are the other teams doing and why are we not doing anything', I can't help. Sorry," he told reporters. "We cannot buy players because other teams buy players. We do our business as good as we can do it and we are convinced about the way we are going.
"Nervous fans? Sorry, I don't have to write a message for this. I am not nervous - maybe that is the message."