Portugal face Switzerland at Porto's Estadio do Drago on Wednesday evening as Fernando Santos' side aim to claim the inaugural UEFA Nations League title.
The European champions have the advantage of playing on home turf and face a Swiss side who have lost two of their last four away matches.
Vladimir Petkovic's side, however, secured qualification for the final four with an astonishing 5-2 comeback victory against Belgium and were the top scoring of all 12 sides who contested the group stages in League A.
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These two nations met in qualification for the 2018 World Cup, with Portugal winning 2-0 at home and Switzerland claiming a victory by the same scoreline in front of their own fans.