Having impressed with his performances for Napoli's under-19 squad, during the 2021–22 season Saco started training with the first team, under manager Luciano Spalletti. The midfielder originally received his first official call-up to the senior team for a Serie A match against Juventus on 6 January 2022: however, having tested positive for COVID-19, he eventually had to withdraw from the match-day squad.
