PORTO won the first big Portuguese Primeira Liga clash of the season when they recently beat Benfica in Lisbon, a big psychological boost for the “second club” and, perhaps, a signal that the title race this season may be even tighter than 2018-19. Porto won 2-0 in the Estádio da Luz, their fifth victory at the home of their rivals in 10 visits. Porto have the upper hand in Clássico games, winning 10 of the last 20 versus just four Benfica victories. Benfica have won five of the last six Primeira Liga titles and last season the margin was just two points. The smart money is on this season’s championship being won by either Benfica or Porto, although Sporting may also have a big say.…