Borussia Dortmund coach Jurgen Klopp has said that his side were not at their best during their victory over Nuremberg in the Bundesliga on Friday.

Two goals from Jakub Blaszczykowski and a late strike from Robert Lewandowski saw the defending German champions win 3-0 at Signal-Iduna Park.

"Even though we had much more possession, things did not go easy for us," he told reporters. "Nuremberg could easily have gone up early on if it wasn't for Roman Weidenfeller.

"We do not have the feeling that we put in a perfect performance. We do feel that we fully deserved our win, though.

"We could have caused them more problems on a few occasions. The challenge is to remain patient."

Dortmund are currently nine points behind leaders Bayern in second place in the table.