The Recopa Sudamericana was played on a home-and-awaytwo-legged basis, with the Copa Libertadores champions hosting the second leg. If tied on aggregate, theaway goals rule would not be used, and 30 minutes ofextra time would be played. If still tied after extra time, thepenalty shoot-out would be used to determine the winner. If extra time was played, a fourth substitution would be allowed.[1][6][7]