Barcelona have included a set buy-back option in their deal with Everton for Yerry Mina.
The Colombia defender signed for Everton yesterday afternoon, along with former Barca teammate Andre Gomes.
Marca says Barca have sought to armour themselves from any blow-back over Mina's sale by including a buy-back clause in the transfer.
Barca can re-sign the defender for a cool €60m.
The Catalans have made a tidy profit from Mina's sale. They signed him in January from Palmeiras for €10m and have now sold Mina to Everton for €30m.