Benfica: Enzo Perez
Argentine international Enzo Perez looks set to play a prominent role for Benfica once more, a constant in their midfield after a summer of many changes.
With Nemanja Matic gone, Enzo Perez is the heart and soul of this Benfica team. Jorge Jesus joked in pre-season that if the Argentinian left for Valencia, he'd have to resign—but he was almost certainly being half-serious.
They are the fourth side in this group who will believe they can progress with some consistency and quality; Perez can provide them with both.