Football is a global business and certain competitions, such as the Champions League or World Cup, by their very nature, bring teams together from all over the globe.
Ordinarily that makes for a wonderful spectacle and fans marvel at the contrasting styles of teams from different countries, but it becomes something of a headache during a global pandemic.
The ever-changing nature of the Covid-19 public health situation has been difficult to manage and even saw a number of European countries impose travel bans from the United Kingdom in December.
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Covid-19 cases related to a mutated strain of the virus in England have prompted concerns among neighbouring countries in Europe and further afield.