Midfielder Eugen Polanski says Poland will show no mercy to the Czech Republic when the two sides meet in an all or nothing Euro 2012 Group A decider on Saturday.

Poland midfielder Dariusz Dudka hopes to be back fighting fit for the Euro 2012 co-hosts' must-win Group A clash with the Czech Republic on Saturday.

Poland defender Damien Perquis and midfielders Eugen Polanski and Dariusz Dudka could be in doubt for the Euro 2012 co-hosts' must win final group match with the Czech Republic after suffering injuries in Tuesday's 1-1 draw with Group A leaders Russia.

Poland's 1-1 draw with Russia in their crunch Euro 2012 fixture felt like a win, given how great a boost it has dealt to the tournament co-hosts' confidence as they eye an historic quarter-finals berth.