Newell's played its first final of Copa Libertadores while Nacional played its 6th final.
Format
The finals were played over two legs; home and away. The team that accumulated the most points —two for a win, one for a draw, zero for a loss— after the two legs was crowned champion. If the two teams had tied on points after the second leg, a playoff in a neutral venue would have become the next tie-breaker. Goal difference was used as a last resort.