Olympic champion Julio César La Cruz of Cuba, right, impressed against Ikenna Enyi of Australia in the heavyweight category ©IBA

Picture gallery 

Erislandy Álvarez of Cuba, left, knocked out World Championships bronze medallist and top seed Alexy de la Cruz of the Dominican Republic in the lightweight category ©IBA
Erislandy Álvarez of Cuba, left, knocked out World Championships bronze medallist and top seed Alexy de la Cruz of the Dominican Republic in the lightweight category ©IBA
In the minimumweight class, Alejandro Claro of Cuba, right, registered a 5-0 win over the fifth seed Yassine Issufo of Mozambique ©IBA
In the minimumweight class, Alejandro Claro of Cuba, right, registered a 5-0 win over the fifth seed Yassine Issufo of Mozambique ©IBA
Two-time world champion Sofiane Oumiha of France, left, won 5-0 against José Carfunjol of Venezuela ©IBA
Two-time world champion Sofiane Oumiha of France, left, won 5-0 against José Carfunjol of Venezuela ©IBA
Scottish neutral athlete Aqeel Ahmed, supported by the IBA, left, did well to knock out Yauheni Karmilchyk of Belarus ©IBA
Scottish neutral athlete Aqeel Ahmed, supported by the IBA, left, did well to knock out Yauheni Karmilchyk of Belarus ©IBA
Tokyo 2020 silver medallist Muslim Gadzhimagomedov of Russia, left, eased past Han Xuezhen of China in the heavyweight category ©IBA
Tokyo 2020 silver medallist Muslim Gadzhimagomedov of Russia, left, eased past Han Xuezhen of China in the heavyweight category ©IBA
Yosvany Veitía of Cuba, right, defeated Shaffi Bakari of Kenya 5-0 in the bantamweight class ©IBA
Yosvany Veitía of Cuba, right, defeated Shaffi Bakari of Kenya 5-0 in the bantamweight class ©IBA
Rio 2016 silver medallist Yoel Finol of Venezuela, right, won 5-0 via unanimous decision against Ruslan Aslikyan of Armenia in the bantamweight category ©IBA
Rio 2016 silver medallist Yoel Finol of Venezuela, right, won 5-0 via unanimous decision against Ruslan Aslikyan of Armenia in the bantamweight category ©IBA