Porto bounced back from their opening day Champions League defeat as they secured a deserved victory over Greek giants Olympiakos.
Goals from Fabio Vieira and Sergio Oliveira ensured the Portuguese champions held off their Greek opponents in a hard-fought Group C encounter at the Estadio do Dragao.
Porto lost their opening match of the campaign when they went down 3-1 at Manchester City, but they were more resolute as they ground out victory against an Olympiakos side who beat Marseille last time out
Fabio Vieira struck in the first half to put Porto ahead against Olympiakos in Group C
Porto's Zaidu Sanusi challenges Lazar Randjelovic's in Tuesday's Champions League clash
Midfielder Vieira, who only made his competition debut on matchday one, seized on some sloppy defending to fire the home side ahead on 11 minutes.