Germany defender Jerome Boateng has told his family not to attend any Euro 2016 games out of fear of a terrorist attack during the tournament.
The terror attacks carried out on Paris in November 2015, killing 130 people, raised fears over the potential for repeat incidents at the European Championship, which gets under way in the capital on Friday.
Ukrainian security agency SBU announced on Monday that it detained a Frenchman who had gathered a collection of guns, detonators and large quantities of TNT, with the intention of carrying out mass attacks at the tournament.
And while nearly 100,000 French security forces will be deployed to safeguard the tournament, Boateng remains concerned something could happen during the upcoming finals.