The Catalans want to sign a preliminary agreement with the player. 
Barcelona have opened talks with Chelsea defender Cesar Azpilicueta, according to journalist Fabrizio Romano.. 
Azpilicueta could be a free agent next summer and Barcelona want to sign him to a pre-contract. Blue Garnet offered the Spanish player an agreement until June 2024. 
The 32-year-old has made 27 appearances for Chelsea this season, scoring three assists.. 
Barcelona are also reportedly interested in signing Chelsea defender Andreas Christensen.