Liverpool are set to land the Guinea international next summer after having agreed a deal with the German club to bring him to Anfield at the end this season.
Keita will officially become a Liverpool player on 1 July 2018, however there has been talk of the Reds potentially trying to move the deal forward to land him in the January transfer window.
But Leipzig sporting director Ralf Rangnick has now sent a clear message to the Merseyside club to tell them that the deal will only go through at the end of the current campaign.
Rangnick told Leipziger Volkszeitung: “Even if we should not reach the knockout stages of Champions League, it would make no sense to allow Naby to join Liverpool earlier.
“We want to qualify for Europe again – and we need Naby for that.”
Keita has scored one goal and made one assist in eight Bundesliga appearances so far this season.
Liverpool have made something of a stuttering start to the new season under Jurgen Klopp.
The Reds have lost four of their opening 11 Premier League games to leave them in fifth place in the table and 12 points behind leaders Manchester City.
Liverpool will look to make it three wins on the spin in the top flight when they take on Southampton at Anfield after the international break on Saturday 18 November.
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news