Liverpool are looking to follow the example set by La Liga giants.
They report that Liverpool are seeking to protect themselves if any player goes on to become a star elsewhere, and they could have the option of bringing the player back to Anfield in such an event.
It could enable Liverpool to buy players back at below the normal value in the transfer market as the Reds try to model such deals on the kind of transfer activity that has taken place in Spain during this transfer window. Notable examples include Barcelona buying Denis Suarez back from Villarreal and Real Madrid bringing Alvaro Morata back from Juventus.
It could both save and make Liverpool money in the long run when it comes to their players, although in the case of Canos it is unclear what the fee will be at this stage.
Some would say this actually represents some smart transfer business from Liverpool, especially when it comes to a transfer market that if you want to sign a good player, the chances are you are going to have to pay around £30 million to another Premier League club.
If the Reds were to see a player that used to be part of their squad that they feel can be part of the team again, they can bring them back for a significantly lower fee.
It could prove to be a shrewd move when it comes to doing transfer business in the medium to long-term.