Barcelona have reportedly asked Chelsea about the availability of defender Andreas Christensen amid fears Samuel Umtiti may need to have surgery on his troublesome knee problem.
According to Tomas Andreu of Sport, the Blaugrana have been weighing up possible defensive targets ahead of the January transfer window. Matthijs De Ligt is said to be on their list, although Ajax are reportedly unwilling to move him on until the summer.
An alternative option is said to be Christensen, who has struggled to get regular football time at Chelsea since the arrival of Maurizio Sarri as manager in the summer.