The former Barcelona manager has injury worries over three key players ahead of his side's Bundesliga clash and believes its upcoming opponent will provide a difficult test.
Bayern Munich coach Pep Guardiola has warned of the "awkward" threat he expects from Darmstadt on Saturday amid fitness concerns over Xabi Alonso, Robert Lewandoski and Arturo Vidal.
The trio are all carrying knocks following Wednesday's Champions League victory over Olympiacos as Bayern prepares to face a Darmstadt side who have made a strong start to its first Bundesliga campaign in 33 years.