According to Spanish publication El Mundo, Neymar is suing his former club for €3.5million in unpaid wages.
Neymar has previously been in court with the LaLiga giants as he feels was owed €43.6million from a renewal bonus inserted in the contract along with the 10% of the fee in interest, which is around €4million.
Now though, the PSG Star's father says the €3.5million is an old demand from when his son left the Camp Nou for Ligue 1 Paris Saint-Germain in 2017.
"(That amount) corresponds to an old demand, when Neymar left Barcelona. At that time, we felt hurt," Neymar senior told Marca.
"We want to reach an agreement with Barca, it will be best for everyone. We have never had a bad relationship with (Josep) Bartomeu.
"We do not know if we will return to Barcelona, ??now has a contract with the PSG."