Paris St-Germain defender Serge Aurier is facing a UEFA charge for insulting a Champions League referee on social media. The 22-year-old Ivory Coast international who won the 2015 African Cup of Nations with his country has been charged with ‘insulting acts’ after posting a video on Facebook last Wednesday after PSG knocked Chelsea out of the competition. Aurier, who missed the game through injury, appeared to insult Netherlands referee Bjorn Kuipers, who sent off PSG forward Zlatan Ibrahimovic in the first half at Stamford Bridge.