The hosts opened their league campaign with a 5-0 home win over Portimonense but failed to build on that win last week when they lost 2-1 away to Vitoria Guimaraes.
They took the lead in the 55th minute but were unable to defend it as Vitoria scored twice in 20 minutes to complete their comeback.
The visitors bounced back from a 3-2 away loss to Boavista in their campaign opener with a comfortable 2-0 home win over Estrela last week. Casper Tengstedt broke the deadlock in the 79th minute, while Rafa Silva scored in the third minute after injury time, both goals assisted by David Neres.
Gil Vicente vs Benfica: TV Channel and Live Streaming
Croatia: Sport club 3 Croatia
Germany: DAZN, Sport1 Extra, RTPi, sportdigital
Greece: Space Sport 9 HD
Israel: Sports 2
Netherlands: Ziggo Sports Racing
Poland: RTPi, Eleven Sports 3 Poland
Portugal: Sport TV1, RTP Africa, Sport TV Multiscreen
Saudi Arabia: SSC
Serbia: SportKlub 3 Serbia
South Africa: RTPi
Switzerland: DAZN, Blue Sport 13 Live, Blue Sport, sportdigital, Blue Sport D 1 , RTPi, Sport1 Extra
United Kingdom: RTPi
USA: Fubo (free trial), RTPi