The former Gunners boss has talked up the talents of the Gabon international ahead of his team's crunch meeting at Emirates Stadium
Unai Emery has said that Villarreal are "expecting the best version" of Pierre-Emerick Aubameyang in the Europa League while describing the Arsenal frontman as a "killer".
Villarreal will head to Emirates Stadium for the second leg of their semi-final tie against the Gunners on Thursday night, where they will be defending a 2-1 aggregate lead.
Aubameyang sat out the reverse fixture at El Madrigal to continue his recovery from Malaria, but will be available for selection again when Villarreal arrive in north London.