Arsenal striker Carlos Vela is joining Osasuna.
"It is a fact, the player goes away to Osasuna," Hernandez told Marca.
"The negotiation has been closed for a loan for a year and with the possibility that it is extended to two, but an option to buy has not been contemplated.
"For Arsenal, it interests them that he plays regularly and he will do that in Osasuna.
"Vela is very happy, it is incredible what he has done. At 17 years, he played in the second division and at 18 in the first with Osasuna."
