Fluminense secured their place in the Copa Sudamericana round of 16 with a commanding 2-0 victory over Deportivo Once Caldas on May 30, 2025. In a direct showdown for top spot in the group, the Brazilian side produced a clinical performance, scoring once in each half to seal the win. The first goal came from a defensive error by Once Caldas, pounced upon by the Fluminense striker, and the second was a powerful header from a corner that killed the contest. Once Caldas, who needed only a draw to win the group, struggled to create clear opportunities against Fluminense's disciplined back line. The result meant Fluminense finished as group winners, a remarkable recovery after their opening loss, while Once Caldas advanced as runners-up. The Fluminense manager hailed his team's growth through the group stage, and the Once Caldas coach conceded the better team won on the night. Fluminense's full-strength lineup proved too strong for the Colombian visitors.