Portugal recorded a perfect wins with 5 wins 15 goals and 15 points Portugal will continue to record wins because it is in an easy group while Slovakia is still competing with Luxembourg in runner-up position with 10 points, there are still 5 matches ahead at least 3 teams still have the same opportunity but I wonder why Iceland is playing badly only collected 1 win and 4 losses even though we know this team is always a threat to any team, have they lost their golden era?
They don't need useless record like this and they need to play better in big tournaments after being qualified to join World Cup and Euro. Portugal is one of biggest national teams in Europe and the world but they got very limited success and titles in their national team history.
Since their golden team with Figo, Rui Costa, Nuno Gomez, Baia, Couto ... they finally won a big title with Cristiano Ronaldo and his team mates with a winning goal from Renato Sanchez. After that tournament, Portugal started to have worse performance in big tournaments. We can speculate their performance will continue to be bad or worse because after Cristiano Ronaldo, Pepe, Portugal don't have too many big young star players to replace those legendary players.
It's hard for Portugal to succeed with those players in coming big tournaments.