Barcelona are interested in Chelsea defender Andreas Christensen.
The Dane is off contract at the end of the season with talks over a new deal hitting a deadlock.
Local journalist Gerard Romero has reported Barca are keeping a close watch on developments.
Romero says Barca's plans won't end with Christensen, however.
Barca are also interested in Chelsea defender Cesar Azpilicueta, Valencia fullback Jose Gaya and RB Salzburg striker Karim Adeyemi.
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