Benitez has grown increasingly frustrated with Newcastle's efforts in the transfer market, with only five new faces arriving at St James' Park despite owner Mike Ashley pledging to make "every last penny" the club earns available to the Spaniard.
Perez is out of favour at Arsenal following the signing of Alexandre Lacazette for a reported €60million fee and Arsene Wenger has suggested the forward is free to leave Emirates Stadium after a single season at the club.
