David Wagner believes psychological problems are to blame for Schalke's sluggish return to Bundesliga action.
After falling to a resounding 4-0 defeat to Borussia Dortmund in the Revierderby last weekend, Schalke went down 3-0 at home to Augsburg on Sunday.
Eduard Lowen's magnificent free-kick put Heiko Herrlich's side in front after six minutes and Noah Sarenren Bazee doubled their advantage in the second half, punishing some lacklustre defending from Salif Sane and Jonjoe Kenny.
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Levent Mercan was caught in possession by Augsburg substitute Sergio Cordova in injury time and the striker rounded Markus Schubert to complete the scoring.