Trapattoni announced his side, barring injuries of unforeseen circumstances, last week and having seen his players come through their final training session in Gdynia unscathed before heading down to Poznan, will stick with his original selection for their Euro 2012 Group C opener.
That means goalkeeper Shay Given and defender John O'Shea, who have been managing injuries over the last three weeks, have proven their fitness.
Republic of Ireland team to face Croatia in Poznan at Euro 2012: Given; O'Shea, St Ledger, Dunne, Ward; Duff, Whelan, Andrews, McGeady, Keane (capt), Doyle.
England will debut their new away jersey against Brazil at the Maracana Stadium on Sunday. Get in the Gear
The USA will wear their blue away jersey against Jamaica in their World Cup qualifier on Friday night.
Germany is one of the top teams ever and they will play the US on Sunday.
Manchester City will try and win back the Premier League title with this new soccer jersey from Nike!
The Nike Hypervenom is the latest cleat silo from Nike. It will change your game and is worn by the game's top players.
Barcelona will wear this new home soccer jersey next season. They also have a new away jersey. Get them both.
The hoop soccer jersey is classic and cool. The USA hooped jersey is perfect for every fan. Get in the Gear.
Jamaica is in need of a win against the U.S. Get the jersey of the Reggae Boyz.
Support the USA national team with an official 2013 Centennial soccer jersey from Nike. Its Official.
Neymar's move from Santos to Barcelona is no doubt the biggest summer transfer.