Benfica moved seven points clear at the top of the Portuguese Liga tonight after a 2-0 win at Olhanense.
The Eagles could not find a breakthrough in the first half but never looked back once Eduardo Salvio put them in front seven minutes after the restart.
Nemanja Matic doubled the visitors' lead 12 minutes later to move Jorge Jesus' men well clear of second-placed Porto, who host Braga tomorrow.
Estoril moved up to fifth with a 4-0 thrashing of Nacional.
Goals from Carlitos, Carlos Eduardo and Leal inside the opening 11 minutes set the tone with Eduardo netting again at the start of the second half.
Nacional were never in the contest, although they were not helped by the 47th-minute dismissal of Miguel Rodrigues.
Beira Mar remain rooted to the foot of the table after a 2-1 defeat at Guimaraes.
Although Miguel Bura cancelled out Amido Balde's opener for the home side, Algeria international El Arbi Soudani popped up with the winner 17 minutes after half-time.
Beira Mar are four points adrift of a group of three clubs including Academica, who lost 2-1 to Gil Vicente.
Eduardo put the strugglers ahead after 41 minutes but Brito equalised before Bruno China's own goal settled it in Gil Vicente's favour.
Rio Ave edged out Vitoria Setubal in a clash which saw both sides finish with 10 men.
Frederico Venancio gave Setubal a second-minute lead but an Ahmed Koka penalty and a Bruno Braga goal saw Rio claim the points with Nelson Pedroso and Koka both seeing red.