Barcelona reportedly still have work to do if they are to sign Ajax defender Matthijs de Ligt after the player's agent put forward new demands.

The Catalan giants had supposedly been confident of getting a deal over the line for the Netherlands international, who has also been touted as a target for the likes of Bayern Munich, Paris Saint-Germain and Juventus.

ESPN suggests that, despite the previous optimism behind the scenes at Camp Nou, the youngster's agent Mino Raiola wants to negotiate fresh terms with Barca.

Ernesto Valverde's men had reached a loose agreement with De Ligt's camp earlier this year, it is claimed, but the growing interest in his signature has led to Raiola to suggest that the previous pact is no longer suitable.

The report indicates that Barcelona are still interested in doing a deal, but they "will not go crazy" with their offer.