When asked about the spending of the club's rivals in a news conference ahead of Liverpool's Premier League opener against Norwich City on Saturday, Klopp replied: "We all know the situation of Chelsea and City and PSG.
"What United are doing, I don't know how they did it. We have our own way to do it. We are allowed to spend the money we earn, that we always did. This year we spent before we earned money with [Ibrahima] Konate because after last season, just to be clear, we cannot take any risk in this position at all.
"I'm never surprised about the financial power of Chelsea, City or United, I've been here long enough to know they always find a solution to these things."
"It's great news. We are really happy that he is happy here," he added. "Imagine if we had to buy this boy now. Thankfully we only have to give him a new contract."
Konate has been the club's only summer signing and when asked if they needed to bring in another midfielder after Georginio Wijnaldum's departure, Klopp replied: "You tell me which player we need, I'm really interested.
"What type of player would you like to sign? Should he score more goals than Gini? Should he defend better than Fabinho? Be more creative than Naby [Keita], Curtis [Jones], Alex Oxlade-Chamberlain and [Harvey] Elliott?"