Brighton were set to face the Gunners following an unprecedented week that has witnessed leagues across Europe suspended or playing matches behind closed doors.
A club statement from Brighton read: "In light of the news that broke earlier this evening concerning Arsenal head coach Mikel Arteta and his first-team squad, we can confirm that Saturday’s match against Arsenal has now been postponed.
"Arsenal confirmed tonight that their head coach has tested positive for the coronavirus, and that their entire first-team squad are now self-isolating.
Albion chief executive Paul Barber commented, “First and foremost our thoughts are with Mikel Arteta and we wish him a speedy recovery.
“It’s absolutely essential the health and wellbeing of individuals takes priority and with that in mind Saturday’s match has been postponed. We apologise to all fans for any inconvenience but trust everyone will understand that we are all facing an unprecedented situation.
“The Premier League has announced this evening that they will convene an emergency meeting of all clubs tomorrow morning, and we will update supporters on future fixtures as and when we are in a position to do so."
Arsenal personnel who had recent close contact with Arteta will now self-isolate in line with Government health guidelines. The club expect this to be a significant number of people from Colney Training Ground, including the full first-team squad and coaching staff, as well as a smaller number of people from our Hale End Academy which we have also temporarily closed as a precaution.
A statement from Arteta read: “This is really disappointing but I took the test after feeling poorly. I will be at work as soon as I’m allowed.”