Mainz coach Thomas Tuchel is hoping to get to the bottom of his side's dip in form before Hoffenheim make an appearance at the Coface Arena this Saturday.
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After winning their first three Bundesliga games of the season, Mainz have proceeded to lose the next four, sliding down the standings as a result.
It is an "extraordinary situation", according to Tuchel, who hopes the slump will not get his team down too much, even if they fall behind on Saturday.
"That's a distinct possibility, but we've got to put all of our resources into the game right to the very end and not let the scoreline during the game mislead us," he said.
"We've got to stand up to the emotions, the intensity and the many, many tackles and build a belief in our own doggedness."
Tuchel has to make one change to his side with Bo Svensson ruled out, and rookie Stefan Bell will take his place.
"I have no qualms at all (about fielding Bell)," said Tuchel. "It's always worked whenever we've thrown him in."
With 18 goals scored, Hoffenheim have an attack which can strike fear in any side, however Markus Gisdol's men have shipped the same number of goals.
The Hoffenheim coach is not worried, however, saying: "Come the end of the season, it all evens out, even if a goal difference of 70-70 would be exciting.
"And anyway, if we had an 18-5 goal difference, then we'd be in a league position where we don't belong."
Gisdol hopes to have Eugen Polanski available after he missed a few training sessions with a calf strain, while Fabian Johnson is a big doubt.