Poland's Robert Lewandowski exercises on the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece at the national stadium of Warsaw, Poland, on Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Poland's players exercise on the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece at the national stadium of Warsaw, Poland, on Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Poland head coach Franciszek Smuda, left, gestures in front of Jakub Blaszczykowski during the training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Michael Sohn)

Poland head coach Franciszek Smuda walks past a Euro 2012 sign on the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Michael Sohn)

Journalists follow the matchday -1 training of the Polish national soccer team on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Gero Breloer)

Greece's Nikos Lymberopoulos, center, jokes with teammates Grigoris Makos, second left, and Yiannis Maniatis, right, on the matchday -1 training on the eve of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Michael Sohn)

Greece's Fanis Gekas, left, passes a ball to Greece's Giorgos Karagounis, second left, on the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Michael Sohn)

Greece head coach Fernando Santos gestures during the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Greece's Giorgos Karagounis, right, gestures during the matchday -1 training on the eve of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Greece's Sotiris Ninis, center, heads the ball as his teammates watch during the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Players from the Greece's national soccer team take part in the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Michael Sohn)

Greece head coach Fernando Santos, right, monitors Giorgos Samaras, left, and Yiannis Fetfatzidis, center, during the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Greece national soccer team's players take part in matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Greece goalkeeper Michalis Sifakis catches a ball during the matchday -1 training on the eve of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Michael Sohn)

Greece head coach Fernando Santos gestures during the training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Greece head coach Fernando Santos gestures during the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Greece head coach Fernando Santos gestures during the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Gero Breloer)

Greek national soccer team players run during their training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)

Greece head coach Fernando Santos leans on a post as he watches his team during the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Gero Breloer)

Greece's Kyriakos Papadopoulos, second left, and Costas Katsouranis, right, take part in the matchday -1 training on the eve of the opening match of the Euro 2012 soccer championship Group A match between Poland and Greece in Warsaw, Poland, Thursday, June 7, 2012. (AP Photo/Thanassis Stavrakis)