By FOX Sports Staff
Dortmund were up by two goals within the half hour and appeared good value for their lead. It was a far removed performance from the one that saw them lose to Bayern Munich in the DFB Pokal Cup quarter-final earlier in the week.
Robert Lewandowski scored a brace and Julien Schieber scored a third goal while Mohammed Abdellaoue scored Hannover's only goal five minutes before the break.
The coach's only complaint was the fact that the Borussians could not keep a clean sheet on the night.
"We played a very good, attractive game. As an offensive spectacle, it was a very good game today [Saturday]," Klopp told reporters in the post-match press conference/
"2-0 at the break would have been in order, but going in at 2-1 was bad. We had to come back in the second half and play more incisively. After our third [goal], we played intelligently."
The 45-year-old was also delighted with Lewandowski as the Polish striker demonstrated his commitment to the team's cause despite having rejected the offer of a new contract a few days prior to the Bundesliga fixture.
"Today, it was the game of Robert Lewandowski. First, the week-long transfer rumours, then the red card against Hamburg and today he played in a very unfamiliar position.
"This is certainly not his favourite position, but he has done it very well."
Dortmund are next in action in the Champions League and play hosts to Shakhtar Donetsk for their Champions League round of 16 second leg. They came away with a 2-2 draw in Ukraine for the first leg back in February.