FCB's sporting director calls for an improved performance from Pep Guardiola's side as they look to avoid an upset against the second-tier team in the DFB-Pokal
The Bavarians entertain the 2. Bundesliga outfit as they look to retain the competition that they won last year and set up a date with either Borussia Dortmund or Wolfsburg in the final.
Their opponents eliminated Bayer Leverkusen in the quarter-finals and Sammer says that FCB must be careful to avoid another upset.
"It's a final for us," he told reporters.
"The lads know exactly not to follow Leverkusen's example. We need to produce a better performance than we did against Dortmund."
Bayern chairman Karl-Heinz Rummenigge echoed Sammer's thoughts, adding: "It will be important for us not to underestimate the opposition.
"They showed what damage they can do against a Bundesliga team at Leverkusen.".