Copa America 2021: Five storylines to watch as Brazil aim to repeat and Argentina aim to compete

The 2021 Copa America officially begins on Sunday as host Brazil takes on Venezuela in the opener, while Colombia also face Ecuador as part of Group A play. The competition runs through July 10 with the big finale as Brazil aim to repeat as champions. A new format is likely to change the approach to the competition for all of the teams involved as some of the world's most talented national teams battle for continental supremacy.