Pacos de Ferreira remain in fifth place in the Liga Sagres after a late equaliser earned them a 2-2 draw with Maritimo on Tuesday.
Brazilian Luiz Carlos squared it four minutes from time for the hosts to keep Pacos de Ferreira within two points of third place.
In a spiteful match that saw the referee produce eight yellow cards, Pacos took an early 15th-minute lead through Vitorino Antunes' strike.
Rafael Miranda replied for the visitors on 23 minutes and David Simao converted from the penalty spot shortly after half-time to put Maritimo 2-1 up.
Carlos spared the home side's blushes with his late goal clawing Pacos within 11 points of undefeated Porto at the top of the standings.
Maritimo are down in 13th place, three points above the relegation places.