Special visitor on the day was Kevin Moran ex Manchester United and Republic of Ireland player.
Millwall and the Republic of Ireland face off in Sunday's final of the Mayo International Cup at 1.30pm in Milebush Park.
Millwall defeated Chesterfield in the semi final, whilst the Republic of Ireland overcame neighbours Northern Ireland in Saturday's other semi final.
Northern Ireland will play Chesterfield in the 3rd/4th place play off at 11am, whilst FAI Castlebar will play Glentoran in the 5th/6th place play off at 10.30am.
In Saturday's opening game, Ireland defeated Glentoran 2-0, with Dara O' Shea and Evan Pierce on target. Gary Higgins was on target for FAI Castlebar in their opening game of the tournament, a 1-1 draw with Millwall, Mason Saunders on target for the Londoners.
Game three saw Chesterfield qualify for the semi final with a 1-0 victory over Glentoran, with Danny Williams on the scoresheet. Northern Ireland also secured a semi final berth for themselves, after defeating FAI Castlebar 1-0, with a late Matthew Shannon goal being the difference between the two sides.
In the first semi final, Ireland produced a scintillating display in a 7-0 victory over Northern Ireland. Aidan Kenna was the star of the show, netting a hat trick for his side. Sean McBride, John Martin, William Fitzgerald and an own goal from the unfortunate David Parkhouse were the other scorers for Ireland.
In the day's other semi final, Millwall defeated Chesterfield by the narrowest of margins, winning 1-0. Despite Noel Leighton having his penalty saved by the impressive Chesterfield goalkeeper Liam Gilbourne, Jessi Debrah's goal early in the second half was enough to see Millwall through to the final to take on Ireland.
Results for Saturday (23 Aug 2014)
Republic of Ireland 2-0 Glentoran.
FAI Castlebar 1-1 Millwall.
Glentoran 0-1 Chesterfield.
FAI Castlebar 0-1 Northern Ireland.
Republic of Ireland 7-0 Northern Ireland.
Millwall 1-0 Chesterfield.
Sunday's Fixtures (24 Aug 2014)
5th/6th place play off - FAI Castlebar v Glentoran - 10.30am
3rd/4th place play off - Northern Ireland v Chesterfield - 11am
Mayo International Cup Final - Republic of Ireland v Millwall - 1.30pm