All matches are being played behind closed doors but videos posted on media websites showed an estimated 200 Porto fans gathering behind barriers outside the stadium, singing and waving flags.
Portugal's Primeira Liga next in line to resume in Europe amid fears of fans gathering outside stadiums
Portugal's Primeira Liga will resume this week as European football continues to make its gradual return amid the coronavirus pandemic.
Sporting Lisbon's ex-president acquitted of inciting attack on players as Portuguese court sentences nine
In May 2018 a group of hooded Sporting fans armed with sticks and belts attacked players at the club’s training ground after the team failed to qualify for the Champions League.
Porto lead the 18-team table with 60 points from 24 matches, one ahead of bitter rivals Benfica, with Braga a further 13 points adrift in third.
Coronavirus Outbreak: Primeira Liga teams undecided over which stadiums should host matches ahead of resumption
It quickly became clear that Primeira Liga teams were determined to play in their own stadiums even though home advantage may count for little as all matches will be without spectators.
Coronavirus Outbreak: Setback for Portugal's Primeira Liga as three Vitoria Guimaraes players test positive for COVID-19
The Primeira Liga, suspended since mid-March, is set to re-start on 30 May and teams began training last week.
Coronavirus Outbreak: Portuguese football’s second division season declared over; CD Nacional, Farense promoted to Primeira Liga
Portugal’s professional football league has declared the second division season to be over with 11 rounds of matches to play and promoted CD Nacional and Farense, it said in a statement.
Sporting to cut player wages by 40%, board to take 50% pay cut during coronavirus crisis, says report
With the pandemic shutting down global sport on an unprecedented scale, Sporting is the first of Portugal’s three major football clubs to announce the cuts.
Primeira Liga: Portuguese powerhouses FC Porto deny wrongdoing after allegations of tax fraud, money laundering
Porto said neither the club nor Costa were ever approached by authorities about the investigation
Veteran Spanish goalkeeper Iker Casillas, who has a year left on his Porto contract, said on Thursday that he wants to "finish his career " with the club.
Primeira Liga: FC Porto seal first title in five seasons after rivals Benfica draw with Sporting Lisbon
FC Porto won its first Portuguese league title in five seasons after a draw by rivals Benfica and Sporting Lisbon left both out of contention on Saturday.
Heavily indebted Portuguese giants Benfica unveiled a collection of wedding dresses which it will sell alongside other club items such as nappies and dog beds.