The winner takes it all in Wroclaw on Saturday, but which nation will that be? Allow these Opta insights to help you decide...
Match odds
Over/Under 2.5 goals
Correct Score
Czech Republic have won 13 and lost just six of 23 internationals against Poland (including games played as the former Czechoslovakia).
Poland's six wins against the Czechs have come in their last six games on home turf against them.
The Czechs have won three of their four previous competitive meetings with Poland (though one of them was by default after Poland withdrew from qualifying for World Cup 1934).
Only Peter Schmeichel (20) has conceded more goals at the European Championship than Petr Cech (15).
Cech has conceded five goals from only six shots on target so far in this tournament.
Poland have played more games at the European Championship without winning than any other side (five).
A win for either side in this match would see them reach the quarter-finals.
A draw would see Poland eliminated, though not guarantee the Czechs a place in the last eight (depending on the result of Greece v Russia).
Only one host nation has ever failed to win a group stage match at the Euros (Austria in 2008).
On the two previous occasions that the Czech Republic have made it past the group stages, they have at least reached the semi-finals (1996 and 2004).
No side has ever had the same result in all three group stage matches at the Euros (Poland have had two 1-1s so far).
No side has ever drawn all three group stage matches at a European Championship.
Ludovik Obraniak set up eight shots for Poland in their last game against Russia - no Polish player has ever set up more in a single match at the Euros.