In a highly spirited match Lázaro Oliveira's Estrela da Amadora fell 4-2 to Porto after fighting back twice to level the match.
The Dragões took the lead ten minutes in as Lisandro López found the back of the net connecting with a soaring header.
Vítor Manuel Moreno drew the match level three minutes before the half hour mark with a peculiar goal off a extraordinary deflection that somehow found its way into the goal.
Cristian Rodriguez restored Porto's lead before the break with a powerful header off Hulk's corner.
Estrela da Amadora fought back and a minute past the hour mark Jose Vidigal found the equalizer as he flew in-close to head in a perfectly placed free-kick.
Three minutes after the hour ex-Tokyo Verdy man Hulk chipped a perfect goal from outside the area into the net.
With six minutes remaining Cristian Rodriguez struck a beautiful curling left-footed free-kick to the outside corner.
Estrela da Amadora
Nélson; Hugo Gomes, Mustafá (Ndiaye 20'), Carreira «cap.» e Moreno; Celestino (Pedro Pereira 65'), Marcelo Goianiria, Fernando Alexandre e Vidigal; Silvestre Varela e Anselmo (Rui Varela 73')
Porto:
Helton; Fucile, Rolando, Bruno Alves e Pedro Emanuel (Tomás Costa 90'); Fernando, Raul Meireles (Guarin 85') e Lucho González; Lisandro Lopez, Hulk (Mariano Gonzalez 88') and Cristian Rodríguez