Liverpool have identified three possible replacements for Dejan Lovren.
The Croatian centre-back is out of contract at the end of this season, with the Reds unlikely to offer an extension.
AS says Jurgen Klopp is eyeing Atletico Madrid stopper Jose Gimenez, RB Leipzig's Dayot Upamecano and Alessandro Bastoni of Inter Milan.
It's difficult to see the Reds signing Gimenez unless Atleti are prepared to accept an offer lower than his release clause of €120 million.
Upamencano is one of the hottest prospects in Europe, with the interest of Arsenal and Barcelona looking likely to spark a bidding war.
Bastoni is the least familiar target, having played just 11 times for Antonio Conte's side this season, although his potential was on display during a loan spell with Parma last season.