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The game could mark the final time Cristiano Ronaldo plays for his country on home soil
The Republic of Ireland will look to build on last week's win over Hungary tonight.
John O'Shea's team play Portugal in Aviero, where kick-off is at 7.45pm.
The game could mark the final time Cristiano Ronaldo plays for his country on home soil.
Northern Ireland are also in friendly action this evening - they play Andorra in the Spanish city of Murcia at the same time.