Lots of trouble after excursion in warmer parts

On 02 January Celtic went to warmer parts of the world (Dubai, United Arab Emirates) just to conduct training sessions and better prepare for resuming of the season (that commenced one week later). As the country was in strict epidemiological situation, the trip of the Scottish champions was criticized by their own government and media. Upon their arrival back home last Monday it was revealed that one player has been infected with the virus (Christopher Jullien), and that meant basically the whole club (13 of them) had to be isolated from the rest, including the coach and his assistant.