After enduring a disappointing European Championship opener that saw Portugal draw with Iceland 1-1, the Cristiano Ronaldo-led side will aim to bounce back when they take on Austria in their second Group F match on Saturday.
Ronaldo was even widely criticised for lambasting Iceland, the smallest country ever to take part in a Euros, for their 'small mentality' because of their defensive tactics.
Despite dominating the game, Portugal players were denied by a brilliant display from Iceland goalkeeper Hannes Halldorsson.
On the other hand, Austria were shocked 2-0 by neighbours Hungary in their opening game.
A defeat for either side will leave them facing an embarrassing early exit from the prestigious tournament.
Elsewhere, Iceland will take on Hungary in other Group F match, while Belgium will clash against Republic of Ireland in Group E game.