Bayern Munich's Benjamin Pavard (hidden) scores their second goal, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) during the match Bundesliga between FC Union Berlin vs Bayern Munich at Stadion An der Alten Forsterei, Berlin, Germany , May 17, 2020. Bayern Munich scored a goal late in each half to beat promoted Union Berlin 2-0 on their return to the Bundesliga on Sunday. REUTERS/Hannibal Hanschke/Pool

Bayern Munich's Serge Gnabry in action with FC Union Berlin's Rafal Gikiewicz, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) during the match Bundesliga between FC Union Berlin vs Bayern Munich at Stadion An der Alten Forsterei, Berlin, Germany , May 17, 2020. REUTERS/Hannibal Hanschke/Pool

FC Union Berlin's Marcus Ingvartsen in action with Bayern Munich's Alphonso Davies, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) during the match Bundesliga between FC Union Berlin vs Bayern Munich at Stadion An der Alten Forsterei, Berlin, Germany , May 17, 2020. REUTERS/Hannibal Hanschke/Pool

Bayern Munich's Ivan Perisic in action with FC Union Berlin's Christopher Trimmel, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) during the match Bundesliga between FC Union Berlin vs Bayern Munich at Stadion An der Alten Forsterei, Berlin, Germany , May 17, 2020. REUTERS/Hannibal Hanschke/Pool

Bayern Munich's Alphonso Davies shoots at goal, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) during the match Bundesliga between FC Union Berlin vs Bayern Munich at Stadion An der Alten Forsterei, Berlin, Germany , May 17, 2020. REUTERS/Hannibal Hanschke/Pool

Bayern Munich's Robert Lewandowski celebrates scoring their first goal, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) during the match Bundesliga between FC Union Berlin vs Bayern Munich at Stadion An der Alten Forsterei, Berlin, Germany , May 17, 2020. REUTERS/Hannibal Hanschke/Pool