Arsenal manager Mikel Arteta has tested positive for the coronavirus.
The news was announced via a statement from the football club, which said the London Colney training centre had been shut down as a result.
The statement said: "Arsenal personnel who had recent close contact with Mikel will now self-isolate in line with Government health guidelines. We expect this to be a significant number of people from Colney, 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.
"We expect those who did not have close contact with Mikel to return to work in the coming days. In the meantime our Colney and Hale End training centres will undergo a deep clean and our other club sites are operating as normal.
Managing director Vinai Venkatesham added: "The health of our people and the wider public is our priority and that is where our focus is. Our thoughts are with Mikel who is disappointed but in good spirits. We are in active dialogue with all the relevant people to manage this situation appropriately, and we look forward to getting back to training and playing as soon as medical advice allows."
Head of football Raul Sanllehi said: "Mikel and the full first-team squad, players and staff, will be fully supported, and we look forward to getting back to training and playing as soon as medical advice allows. Obviously Mikel's full recovery is the priority now for us all."
The statement said Arsenal won't be able to play some fixtures on their 'currently scheduled dates'. People with tickets to these matches will be updated once more information is known.
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