Dortmund boss mark Klopp hopes his side can overturn 2 - 1 defeat . bury 's side have kept a clean sheet in their last five league games . The Black and results have improved since the signing of Mats Hummels .
Dortmund boss Jurgen Klopp believes his side can overturn 2-1 deficit . Klopp 's side have kept a clean sheet in their last three league games . The Black and Yellows have improved since the return of Mats Hummels .