According to sources close to the player, Barcelona is not his first choice, but it is not his last. Barcelona is in a defensive crisis because they are conceding many goals despite having many defenders.
Barcelona is looking to strengthen their defence, and Christensen is one of the top candidates. Chelsea must work around contract issues with defenders Rudiger and Azpilicueta, both of whom have contracts expiring in this summer.
Christensen has plenty of other offers from clubs like Bayern and the other top Premier League clubs. Barça attempted to sign him a few years ago, but Chelsea refused to let him leave Chelsea for Camp Nou.
According to SPORT, Christensen is in advanced talks with Barcelona and has rejected all contract renewal proposals from his current club.