Under it anybody who does not commit to the club for at least two years will be deemed surplus to requirements and sold.
Chelsea are to adopt a new contract strategy as they look to trim a bloated first-team squad at Stamford Bridge.
That leaves a number of existing stars vulnerable to this treatment, including Mason Mount, Kai Havertz, Kepa Arrizabalaga and Édouard Mendy.
Exceptions will be made for players like Thiago Silva, who, because of his age, is only offered incremental one year contract extensions anyway.
It is Likely to be a summer of upheaval at Stamford Bridge anyway. Not only is there an obvious need to clear out some of the dead wood at the club, but room also needs to be made for new arrivals.
They may have spent over £600 million in the past two transfer windows, but they have not stopped yet and more high profile arrivals can be expected to arrive in West London.
Andy is an exiled English football fan living in Cyprus. He loves all sports but football is his abiding passion, and he still has dreams every now and then about scoring the winning goal in a Wembley Cup Final, even though his playing days are long gone. He follows most major leagues, across Europe at least, and has a favoured team in each. When he’s not watching, listening, reading or downloading podcasts about football, he spend his time worrying about his beloved Arsenal.