The former Barcelona man has been involved in just about everything good that the Gunners create and we certainly think that it is vital Arsene Wenger actually manages to keep him fit – and able to play each and every week.
Their chances at the title are ebbing away with each passing game but the fight for top four is certainly on and Arsene Wenger will be hoping for a little bit more – maybe even third place.
To get that, Sanchez simply has to be kept fit and here are five reasons we think he is so important to the Gunners.
Click on Sanchez himself to see just why we think he is so vital to Arsenal.
Arsenal fans. Do you think that Sanchez has become your best player? Let us know your thoughts below or tweet us @LaFootyettes.