Internacional twice surrendered a lead but they will be the happier of the two teams heading into the return fixture.
Former Porto and Lyon striker Lisandro López put Internacional ahead in the second minute but Douglas Santos restored parity 12 minutes later. Internacional were ahead again in the 61st minute through 20-year-old exciting prospect Valdívia, who headed the ball into the net from close range, only for Leonardo Silva to snatch a draw for Galo in injury time.
