Mikel Arteta must put his pursuit of Alexander Isak on the back-burner for now as Arsenal need another addition more pressingly. Arsenal need to invest in several areas of their squad in the upcoming summer transfer window. The Gunners are on the hunt for a new striker. Alexander Isak has been linked with a switch to the Emirates Stadium, and would undeniably be an exciting addition. The Newcastle United ace has been in scintillating form this season. Arsenal are also keen to bring in another left-back. However, midfield reinforcements ought to be Mikel Arteta’s top priority, even above striki…