Vitoria Setubal moved further away from the relegation zone after a late goal saw them snatch a 1-1 draw with Vitoria Guimaraes.
Setubal have won just four times this campaign and are without a victory since early January.
Their trip to the Estadio Dom Afonso Henriques got off to a horrible start when Rui Miguel opened the scoring for Guimaraes after 27 minutes.
Things were looking dire for Setubal until the final minute of regular time, when substitute William scored his first goal for the club to earn them a share of the spoils.
The point moves Setubal five points clear of 15th placed Naval de Maio at the edge of the relegation zone, although Naval can cut the gap to two points with a win on Sunday.
In Saturday’s other fixture, Sporting Lisbon were unable to break through a stubborn Rio Ave defence in their 0-0 draw at the Est?dio do Rio Ave Futebol Clube.
Third-placed Sporting would have been expecting to take full points against lowly Rio, but failed to find the back of the net and slip further behind top two Porto and Benfica as a result.