Here is the list of games for this weekend, for the 3rd round:
MATCH DAY 3:23.08 15:00 
Moreirense FC vs

Vitória SC
23.08 17:00 
CD Nacional vs

Sporting Clube de Portugal
23.08 19:30 
FC Arouca vs

Rio Ave FC
23.08 19:30 
Sport Lisboa e Benfica vs

CD Tondela
24.08 14:30 
FC Famalicão vs

Gil Vicente FC
24.08 17:00 
FC Porto vs

Casa Pia AC
24.08 19:30 
Sporting Clube de Braga vs

AVS
25.08 19:15 
CF Estrela da Amadora vs

FC Alverca
06.09 19:30 
GD Estoril Praia vs

CD Santa Clara
Info: day.month. time (UTC)What are your guesses?
Well I still see all big teams in the Portuguese league winning all their matches again this week, all the big teams are yet to lose a match and I still think it will still remain that way after this week fixture. From all indications so far this season, it going to be super competitive, every team fighting for every point from the beginning already.
If it continues like this it going to be very difficult who will probably win the league this season.
Above all, even as much as these team are making such performances every team Is still trying to make transfers before the window closes, that show that every team is challenging for this title This season. I think we are going to have a very interesting and competitive season.