 He returned to main club Porto in 2006 and worked with several of its youth sides, always as assistant.On 17 October 1979, Frasco made his debut for Portugal, in a 0–2 loss against Belgium in Brussels for the UEFA Euro 1980 qualifiers.He was one of the most influential players in the successful Euro 1984 campaign, taking part in all the matches as the national team reached the semi-finals and assisting Nené for the only goal against Romania in the group stage.