Niall Fitzmaurice bagged all the goals in Cherry Orchard's 4-0 win over Otago in the Premier Section of the Milk Cup.
County Fermanagh enjoyed a 3-1 win over FC Brussels with goals from Ryan Smyth, Andrew Little and Richard Flaherty.
The scorers in Manchester United's 5-0 win over Leichtenstein were Craig Cathcart, Christopher Fagan (2), Febian Brandy and Conor McCormack.
John McLoughlin scored for County Armagh against Spartak Moscow but it was not enough as they went down 2-1.
Premier fixtures and results
Monday 31 July
FC Porto 1-1 Rapid Vienna
Otago 0-4 Cherry Orchard
FC Brussels 1-3 Co Fermanagh
TuS Altenberge 0-0 Co Tyrone
Sheffield Utd 1-0 San Francisco Utd
Spartak Moscow 2-1 Co Armagh
Cruz Azul 0-0 Co Down
Chelsea 2-1 Co Antrim (1800)
Universidad Catolica 1-0 Co Londonderry
Bayern Munich 3-0 Malta
Manchester Utd 5-0 Liechtenstein
Tuesday 1 August
Liechtenstein v Cherry Orchard (1530 BST)
Otago v Sheffield Utd (1530)
San Francisco Utd v Co Antrim (1530)
Malta v Co Londonderry (1530)
FC Brussels v Universidad Catolica (1700)
Cruz Azul v TuS Alternberge (1700)
Rapid Vienna v Co Down (1900)
Bayern Munich v Co Armagh (1900)
Manchester Utd v Co Tyrone (1900)
FC Porto v Co Fermanagh (1900)
Chelsea v Spartak Moscow (1900)