Arouca's possession game meets a Nacional side built to crowd the centre and choose its moments to break. The home side have an established crossing connection, but their latest territorial dominance came largely against ten players. Nacional's recent improvement has a visible defensive mechanism rather than just a better result.
Djouahra supplying Barbero and Fukui arriving from midfield are Arouca's main ways through. Nacional answered Braga with Labidi screening in front of central cover, making five tackles and two blocks. Song then found Baeza for the decisive finish, giving the visitors a working outlet beyond their defensive shape.
The expected Nacional team retains the same eleven, and Henriques has spoken about continuing that work. Their injured group already missed Braga. Arouca's suspended Rukavina was an unused substitute in their last match, so his absence affects attacking alternatives rather than removing the established starting connection.
I expect Arouca to circulate outside the block while Nacional look for selective releases through Song, Baeza and Njoya. That combination of central resistance and an existing counterattack is why I'm siding with Nacional to avoid defeat.