The Czech Republic international said: "We didn't have a good spell even though we were unbeaten because we didn't win for two or three games.
"We badly needed the three points from Blackpool and I think we are on the right path again.
"We have a huge week in front of us and we have to be successful.
"It's very important for us to be relaxed in these games. If you are relaxed you can express yourself the best so I hope that's what we will show on Sunday.
"Liverpool have played some good football recently and it will be a very interesting match."
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