Poland midfielder Grzegorz Krychowiak urged his teammates not to get carried away after Sunday's 1-0 win over Northern Ireland marked the nation's first victory at a European championship finals.

The Group C triumph was Poland's first in seven games at the finals and put the team in a strong position to reach the knockout stages as it prepares for a tough clash with world champion Germany in Paris on Thursday.

"We understood that the first match is very difficult, we were prepared for that. The next matches will show that we can be even better and go further," said Krychowiak.