[3] Couana made his T20I debut on 6 November 2019, in the first match of the tournament against hosts Malawi.
[4] Couana was part of Mozambique's T20I squad for their matches in Group B of the 2021 ICC Men's T20 World Cup Africa Qualifier tournament in Rwanda.
[5] In Mozambique's second match of the qualifier, against Cameroon, he scored 104 runs and took five wickets.
[6] He became the first player for Mozambique to score a century in T20Is,[7] and to take a five-wicket haul in T20Is.
[8] He also became the first player to score a century and take five wickets in a single T20I match.