Shortly after coming to Cameroon for the Africa Cup of Nations, Pierre-Emerick Aubameyang tested positive for Covid-19.
Before heading to Cameroon, the Gabonese international was spotted in Dubai with colleague Mario Lemina.
Lemina, a former Southampton and Fulham midfielder, has also caught the infection, and the pair will need to isolate before their first game of the campaign.
Mikel Arteta stripped him of his captaincy status after a recent disciplinary transgression, and the 32-year-old has had a terrible month.
He hasn’t played for Arsenal since a 2-1 defeat to Everton in early December.
Arsenal have improved their records in all competitions since then, qualifying for the Carabao Cup semi-finals and winning four of their last five Premier League games, with only one defeat coming against Manchester City at the top of the table.
In current transfer window, Aubameyang is weighing his options, with Arsenal open to bids for their now-exiled former captain.