Liga Sagres wrap: Porto slip up, Nacional cruise
Liga Sagres leaders Porto dropped points in a 1-1 draw at Pacos de Ferreira on Sunday, while Nacional Madeira hammered Beira Mar.
Following a goal-less first half at Estadio da Mata Real, away side Porto took the lead two minutes after the break, through an own-goal from Ricardo Da Silva.
Hosts Pacos levelled through Lorenzo Melgarejo on 79 minutes, and held out for the time remaining to take a point off their heavyweight visitors.
Porto remain top, just point ahead of Benfica, who also were held 0-0 at Olhanense a day earlier.
In other matches, Nacional downed Beira Mar 3-0 away from home.
Claudemir struck twice from the penalty spot in each half, and Ladji Keita added the third with 15 minutes to go.
Miguelito struck two minutes into Vitoria Setubal's match at home to Uniao de Leiria, securing a 1-0 victory for the hosts.
And finally, Edgar's 77th-minute effort helped Vitoria Guimaraes win away to Rio Ave by the same score-line.