Busio spent the summer with the U23 U.S. men's national team at the 2024 Paris Olympics, but only managed to compete in two of their four matches. In their second match of the Group Stage, he exited their 4-1 victory over New Zealand with a lower-leg injury after bagging the USMNT's third goal of the match 30 minutes into the contest.
He's since been undergoing rehabilitation with Venezia, preparing to make his 2024-25 debut.