The league victory was also the first occasion since 1984 that Benfica have successfully defended their championship title.


The Lisbon club’s celebrations were however spoiled by violence in Guimarães and in the Portuguese capital, with a dozens of arrests being made throughout the night.


Across the border, a hat-trick by Cristiano Ronaldo in Real Madrid’s 4-1 win at Espanyol was not enough to stop Barcelona winning the La Liga, who beat Atletico Madrid 1-0 thanks to a goal by Lionel Messi.