Barcelona president Sandro Rosell says he would love to publicly reveal the exact details of Neymar’s transfer from Santos, but maintains that a confidentiality agreement stops him doing so.

A continuing court investigation in Madrid is looking into last summer’s complex deal, in which Barca say they paid 57 million euros but El Mundo claims a total of 95 million euros changed hands.

A news conference on Monday evening, which was organised to announce Barca’s plans to extend the Camp Nou, was dominated by the Neymar controversy, with Rosell again insisting that only 57 million euros had been paid and that he was willing to testify to that in court.