Manager Fernando Santos is phasing in a talented new generation, and if Portugal can keep their momentum from last summer, they will be serious challengers for their first Confederations Cup title.
Javier Hernandez and an in-form Carlos Vela provide an attacking threat few will be able to rival; with only one defeat in their last 13 outings, Juan Carlos Osorio's side look in decent shape all over the pitch, and a semifinal finish will be their minimum target.
Prediction: Second place in the group will bring a semifinal reunion with Chile, who trounced Mexico 7-0 at the Copa America Centenario.
Despite the inevitable circus of transfer speculation, Alexis Sanchez will be expected to shine, and Arturo Vidal also features in a strong squad.
FC Luzern striker Tomi Juric, who scored twice against Saudi Arabia last week, will be looked to for goals, while Tom Rogic and Mathew Leckie are threats and 37-year-old Tim Cahill is still around.