Mikel Arteta has been sent a clear message by one Arsenal player who left the club on loan this summer. Arsenal offloaded a mass of talent during the summer transfer window, whether that be on a loan basis or permanently. Several Hale End academy products bid farewell to the club, with Emile Smith Rowe and Eddie Nketiah bringing their association with the Gunners to a close. The duo joined Fulham and Crystal Palace respectively, with Arteta having to stand firm to continue the development of his squad at the Emirates. READ MORE: Every signing and exit Arsenal announced on transfer deadline day…