Vitoria de Setubal picked up three points on the road with a 3-0 victory over Belenenses at the Estadio do Restelo.
It took 15 minutes for the visitors to take the lead, with South Korea international Hyun-Jun Suk heading into the back of Hugo Ventura's net.
Quim Machado's side then doubled their advantage three minutes later as Suk turned provider, setting up 19-year-old Andre Horta for his first senior goal.
Into the second half and things went from bad to worse for Belenenses with 30 minutes remaining. Defenders Ruca and Nuno Pinto combined, with the latter going clear on the wing before crossing into Suk, who was on hand to secure his brace with a calm, composed finish.
The result pushes Setubal above Pacos de Ferreira into sixth, while Belenenses have now lost four of their last six league games and sit in 13th.
