However, former Manchester City midfielder Barton believes Klopp could benefit from Coutinho's departure.
"They're so good going forward".
Liverpool are understood to be happy to pay the new premium for Keita, who has scored five times for Leipzig in 20 appearances to date this season.
Sunday's opponents have shown that it can be done.
Keita coupled with the addition of Van Dijk is a far stronger Liverpool side than the one that Coutinho is leaving.More news: Here's Why Monster Hunter
Whether a midfield of Coutinho, Lallana and either Jordan Henderson or Emre Can would have worked is something we'll sadly never know.
"You get a player with enormous quality on the pitch", Halstenberg began.
On Wednesday evening they report on FSG attempts to brighten up Liverpool's transfer situation and make a response to the Coutinho saga. At Anfield they have quietly been rather stingy, only conceded four Premier League goals in 11 games this season. This has been important in recent months for Klopp, who has made the team harder to beat since its collapse at Wembley Stadium on October 22 in a 4-1 loss against Tottenham.
The newspaper claims that the club will use the cash from Coutinho's sale not only to strengthen with new recruits but also to offer improved financial terms for its existing top stars.