Borussia Dortmund's performance against Eintracht Frankfurt was littered with technical, tactical and mental flaws, according to coach Thomas Tuchel.
Despite beating Legia Warsaw 8-4 at Signal Iduna Park in Tuesday night's Champions League encounter, Dortmund slipped to a third defeat on their travels this season as they were beaten 2-1 by Eintracht Frankfurt on Saturday, with Haris Seferovic netting the winner a minute after Pierre-Emerick Aubameyang's equaliser.
The defeat leaves Tuchel's side nine points behind league leaders RB Leipzig after 12 games, and the coach is adamant things must improve - particularly on the road - if they are to close that gap and challenge for the title.