Several thousand people gathered at the Zagreb's main square to watch Croatia's crucial match on a giant screen.

Croatian football fans react while watching Euro 2012 group C football championships match.

Croatian defender Vedran Corluka vies with Spanish goalkeeper Iker Casillas during the Euro 2012 football championships match Croatia vs Spain.

Irish midfielder Keith Andrews vies with Italian midfielder Daniele De Rossi during the Euro 2012 football match Italy vs Republic of Ireland.

Turkish referee Cuneyt Cakir shows a yellow card to Italian midfielder Daniele De Rossi during the Euro 2012 football championships match Italy vs Republic of Ireland.

Spanish goalkeeper Iker Casillas defends his goal during the Euro 2012 football match.

Supporters of the Spanish national football team react while watching the Euro 2012 football match between Spain and Croatia.

-File photo

Supporters of the Spanish national football team react while watching the Euro 2012 football match between Spain and Croatia on a giant screen.

Italian forward Antonio Cassano vies with Irish midfielder Damien Duff (Left) and Irish midfielder Stephen Ward (Right).

Italian forward Antonio Di Natale (Right) has a shot on goal during the Euro 2012 football championships match Italy vs Republic of Ireland. – Photo by AFP