A symbolic ticket for Euro 2012 matches is displayed at the Olympic Stadium in Kiev during its presentation on April 23, 2012. AFP PHOTO/ SERGEI SUPINSKY

CORRECTION ALL INFORMATIONS The recto of a giant-size version of the EURO 2012 tickets is displayed on the pitch of Warsaw's national stadium during the unveiling by tournament organisers on April 23, 2012. AFP PHOTO/ JANEK SKARZYNSKI

CORRECTION ALL INFORMATIONS The verso of a giant-size version of the EURO 2012 tickets is displayed on the pitch of Warsaw's national stadium during its unveiling by tournament organisers on April 23, 2012. AFP PHOTO/ JANEK SKARZYNSKI

CORRECTION ALL INFORMATIONS A giant-size version of the EURO 2012 tickets is displayed on the pitch of Warsaw's national stadium during its unveiling by tournament organisers on April 23, 2012. AFP PHOTO/ JANEK SKARZYNSKI

Poland's former soccer team member Zbigniew Boniek presents the design of the tickets for the opening game of the Euro 2012 soccer Championships at the new National Stadium in Warsaw, Poland, on Monday, April 23, 2012. Euro co-host Poland will play Greece at the stadium on July 8 to open the games that are also hosted by neighboring Ukraine. (AP Photo/Czarek Sokolowski)

A ticket design for the Euro 2012 soccer championships is presented for the opening game of the Euro 2012 soccer Championships at the new National Stadium in Warsaw, Poland on Monday, April 23, 2012. Euro co-host Poland will play Greece at the stadium on July 8 to open the games that are also hosted by neighboring Ukraine. (AP Photo/Czarek Sokolowski)