The countdown is on for one of the most anticipated Copa Sudamericana. Quarter-finals. First leg fixtures of the week. Boca Juniors and Sao Paulo will lock horns on Wednesday, September 9, 2026 at 02:30 at Home Arena in Germany. The man with the whistle is Daniel Siebert, a well-known figure in German football. Conditions are forecast to be Light rain, 14°C. On the injury front, Boca Juniors are sweating on the fitness of Lange, and Sao Paulo will be monitoring Richter closely. Historical data shows: Boca Juniors 2 - 3 Sao Paulo (2023). Boca Juniors 4 - 1 Sao Paulo (2024). Boca Juniors 3 - 3 Sao Paulo (2025). Boca Juniors 4 - 2 Sao Paulo (2023). Boca Juniors 0 - 3 Sao Paulo (2025). Score prediction: 3:2.