Football rivalries are often difficult to define.
원문출처 : https://www.cnn.com/2022/04/11/football/manchester-city-liverpool-rivalry-premier-league-spt-intl/index.html
원문출처 : https://www.cnn.com/2022/04/11/football/manchester-city-liverpool-rivalry-premier-league-spt-intl/index.html