Poland and Italy go head to head, while Russia host Turkey in the Nations League on Sunday.
Cristiano Biraghi struck in the second minute of added time as Italy snatched their first win in the Nations League by edging out Poland.
Jose Mourinho watched Serbia win, while Bernardo Silva helped Portugal to victory.
Portugal and Scotland are in action as the UEFA Nations League returns on Thursday, while Wales, Spain and France play friendlies.
Aiden O'Brien's debut goal helped Ireland put their off-field woes behind them despite a late Poland equaliser in a 1-1 draw.
Look back at the action in Wroclaw where Poland scored late to draw with the Republic of Ireland in an international friendly.
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