Benfica earned early bragging rights in Portugal after a beating Porto 2-0 in the Super Cup.
The Dragons started stronger at Estádio Municipal de Aveiro, but they failed to take their chances as the first half ended level.
The Eagles eventually got on top, a moment of class from Ángel Di María putting them ahead in the 61st minute. Substitute Petar Musa started and finished a move with Rafa seven minutes later with Porto unable to find a wa back.
The fiesty clash ended with 12 yellow cards and one straight red after Pepe was sent off for kicking David Jurásek.
Sergio Conceição earned his moment in the spotlight, refusing to leave the pitch for four minutes after receiving yet another red card for verbal abuse.
Braga took a big advantage in the UEFA Champions League third qualifying round after a comfortable 3-0 victory against beat TSC Backa Topola in the first leg.
The curse continues. No Portuguese team has ever qualified for the group stage of the Europa Conference League and Vitória will not be the first after crashing out of the competition in Guimarães tonight.
After protracted negotiations, FC Porto have completed the signing of Barcelona midfielder Nico González on a five-year contract. The Spaniard cost the Dragons €8.4 million.
NK Celje 3-4 Vitória SC