Real Betis president Lorenzo Serra Ferrer has confirmed Fabio Ruiz is on the move to Napoli.
Serra Ferrer admits the midfielder is now undergoing a medical in Naples.
He said: "The club has authorised for him to carry out medical visits with Napoli, if the club will pay the clause, the operation will be completed.
"We cannot forget what Fabian left us as a person and as a player, it is a pride for us that after many years in the cantera after the first year in the first team many teams have wanted him.
"This will always be his home, not only for him but also for his family."