Voller (centre) - will miss suspended Ziege (left) (Allsport)

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Germany are as worried about the heat in their second-round clash with Paraguay as they are about playing the South Americans.

The game kicks off in the Seogwipo midafternoon in temperatures which could favour Paraguay.

Assistant coach Michael Skibbe said: "We do know that we have to play to our limit."

Midfielder Michael Ballack added: "The weather is incredibly oppressive."

Meanwhile Rudi Voller has warned his team not to underestimate Cesare Maldini's side, a team which narrowly qualified for the second round.

"You have to take every opponent serious," he said.

"Only if you do this 100% will you have a chance."

Vvller will have to make three changes to the team which beat Cameroon 2-0 to secure a place in the last 16.

Christian Ziege, Dietmar Hamann and Carsten Ramelow are suspended after picking up yellow cards against the Africans and will miss Saturday's game.

To add to Voller's worries, Jorg Bohme has been ruled out after tearing a muscle in training yesterday.

However, the coach remained confident that the players he did have at his disposal will be too strong for Paraguay.

He said: "The players did perform just in the moment when it was needed. That is the way new teams are born."