Arsenal's Europa League clash against PSV Eindhoven is in doubt due to concerns over police resources before Queen Elizabeth II's funeral.
UEFA is confident that the other European fixtures set for Thursday will go ahead, however, there is doubt over Arsenal's second group stage game which is due to be played at the Emirates Stadium in London.
According to Telegraph Sport, there are worries that the fixture could be one of many to be affected by police shortages as many are needed to help with the national period of mourning and preparations for the Queen's funeral on September 19 rather than manage football matches.