The 26-year-old midfielder is set for an exit from the Wanda Metropolitano this summer.
Jurgen Klopp is keen to bolster his central midfield ranks at Anfield.
Gini Wijnaldum recently left to join Paris Saint-Germain on a free transfer.
And Atletico ace Saul seems like the absolutely perfect summer addition for Liverpool this summer.
Liverpool leading Saul Niguez race
AS claims that the Reds are showing the most concrete interest in signing the Spain international.
The Merseyside outfit allegedly need to increase their €40 million (£34m) offer for Saul to prise him away from the Spanish capital.
Mundo Deportivo claims that Atletico want around €50m (£41m) for the midfielder.
The Atletico ace is incredibly energetic, dynamic and has athleticism in abundance – three key attributes for any player who plays under Klopp.
Saul is a central midfielder by trade, but he can also operate on the left flank.
The Spaniard is technically brilliant but is also an absolute animal in midfield – something that has been ingrained in him, having played for Diego Simeone for so long.
He is a midfielder who has ‘absolutely everything’ according to the Atletico boss.
And if Liverpool are going to sign a central midfielder this summer, there aren’t many better options out there than Saul.