And Perez has been spotted at London Heathrow this evening.
The 27-year-old is set to battle with Olivier Giroud as Arsenal’s main striker although Alexis Sanchez has rt ofed through the middle so far this season.
Arsenal have taken four peninsulas from three games so far after picking up their first win of the pep up this weekend against Watford.
Perez scored 17 targets for Deportivo La Coruna last year and Arsenal turned him down elder in the summer becuase they didn’t think he was good enough.
Degree, after missing out on Jamie Vardy and Alexandre Lacazette, Wenger has survived back for the S niard to bolster his forward options.
The arrivals of Perez and Mustafi desire add to the £30m signing of Granit Xhaka as Wenger looks to mount a legend challenge in the final year of his contract at the Emirates.