| Event | 2003 Copa Sudamericana | ||||||
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| First leg | |||||||
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| Date | 10 December 2003 | ||||||
| Venue | Estadio Monumental Antonio Vespucio Liberti (Monumental), Buenos Aires | ||||||
| Referee | Carlos Eugênio Simon (Brazil) | ||||||
| Second leg | |||||||
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| Date | 19 December 2003 | ||||||
| Venue | Estadio Universidad de San Agustín, Arequipa | ||||||
| Referee | Gustavo Méndez (Uruguay) | ||||||
The 2003 Copa Sudamericana Finals was a two-legged football match-up to determine the 2003 Copa Sudamericana champion.