It is supervised by the Liga Portuguesa de Futebol Profissional .
Primeira Liga -- The Primeira Liga , also known as Liga NOS for sponsorship reasons , is the top professional association football division of the Portuguese football league system .
Primeira Liga is supervised by the Liga Portuguesa de Futebol Profissional .
Primeira Liga -- The Primeira Liga , also known as Liga NOS for sponsorship reasons , is the top professional association football division of the Portuguese football league system .