Marseille right-back Cesar Azpilicueta is a January target for Chelsea according to the Daily Mirror.
The 22-year-old Spaniard is currently third-choice stopper in his position for the star-studded world champions, but has impressed in his second season in Ligue 1.
Azpilicueta, who joined Marseille in 2010 in an £8million deal from Osasuna, could cost Chelsea up to £12million, and is being lined up to fill a gaping weakness in the Stamford Bridge outfit's defence.
As negotiations with central defensive target Gary Cahill are ongoing, Azpilicueta could be the first of many additions in west London, at the start of a busy month that will see a revolving door policy at the club.
Chelsea chiefs are now ready to accept major changes will be required over the next eight months, with a number of big-name players to be eased out of the door in the next two transfer windows.
Nicolas Anelka is the most high-profile name to have left Stamford Bridge this month, and with Brazilian defender Alex on the transfer list and attracting interest from a number of clubs, it looks as though he won't be far behind.
And with rbig questions as to whether the likes of Didier Drogba, Salomon Kalou and John-Obi Mikel will still be Chelsea players by the end of the month, it is obvious that Villas-Boas is planning for the long-term.