Only one team in Champions League history has previously won back-to-back titles.
원문출처 : https://www.cnn.com/2020/10/19/football/champions-league-group-stage-preview-spt-intl/index.html
원문출처 : https://www.cnn.com/2020/10/19/football/champions-league-group-stage-preview-spt-intl/index.html