Atletico Madrid goalkeeper Jan Oblak has conceded he didn't know who Bayern Munich boss Hansi Flick before the German took charge at the Allianz Arena.
Bayern have been drawn against Atletico, Lokomotiv Moscow and Red Bull Salzburg in Group A as they look to defend the Champions League crown they won in impressive fashion in 2019-20.
The German champions became the first team to win every single match in a Champions League campaign, beating Paris Saint-Germain 1-0 in the final to lift the trophy for the sixth time in their history.