The Czech Republic know that "even our best performance might not be enough" against Germany, while Poland also hope to close on a FIFA World Cup place in Friday's European Qualifiers.
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Germany a formidable Czech challenge
"Even our best possible performance might not be enough to get points," Czech midfielder Bořek Dočkal said of the meeting with Germany. The world champions have won all six games in Group C and could potentially book their place in Russia over the next week. The Czechs are four points behind second-placed Northern Ireland, who they visit on Monday, and any slip against Germany will make victory in Belfast a necessity. Coach Karel Jarolím will have to make changes in central defence as captain Tomáš Sivok and regular partner Jakub Brabec are missing.
Czech Republic v Germany
Lewandowski ready to shoot down Denmark
Poland know victory in Denmark would take them to the verge of qualification, but Denmark are still trying to keep their hopes alive. Striker Nicklas Bendtner is back on coach Åge Hareide's squad list due to Yussuf Poulsen's injury. Regardless of who Hareide deploys in defence, they are going to be in for a tough time as they face qualifying joint-top scorer Robert Lewandowski, who scored a hat-trick the last time the two teams met.
Denmark v Poland
Slovakia aim to end Slovenia hoodoo
Slovakia moved to within two points of Group F leaders England in June but are only one ahead of Slovenia, against whom they have lost their last three qualifiers and are five without a win. "It's time to change that, especially when we want to still have a chance to qualify," said Slovakia coach Ján Kozák before Friday's sell-out game in Trnava.
Slovakia started with defeats by England and Slovenia, but four straight wins have revived their hopes, though Kozák is missing suspended defenders Martin Škrtel and Ján Ďurica as well as injured goalkeeper Matúš Kozáčik. Marek Hamšík, who turned 30 at the end of July, has been presented with a 3m x 2.5m postcard collage created from pictures and congratulations from fans.
Slovakia v Slovenia
Games kick off at 20:45CET unless otherwise stated