Soccer Football - Bundesliga - Bayern Munich v SC Freiburg - Allianz Arena, Munich, Germany - June 20, 2020 General view of a corner flag with a 'Corona Warn-App' advert, following the resumption of play behind closed doors after the outbreak of the coronavirus disease (COVID-19) Sven Hoppe/Pool via REUTERS DFL regulations prohibit any use of photographs as image sequences and/or quasi-video