Weidenfeller was the star as his heroics during the match and his save from Brocker in the shootout spared 10-man BVB's blushes as they progress to the last eight
A 34th minute red card to Patrick Owomoyela put Dortmund in trouble, and they spent the majority of the match defending against a determined Fortuna performance. However, with Roman Weidenfeller in fine form in the visitor's goal, the hosts could not find a breakthrough through 120 minutes of play. In the shootout, the BVB keeper saved from Thomas Broker to send his side through to the next round.
The home support had risen to the occasion, with every fan inside the Esprit Arena in full voice. Their attitude was mirrored on the pitch, as the 2. Bundesliga leaders made a positive start to the game.
Fortuna fashioned the first opportunity of the match 20 minutes in when Assani Lukimya’s effort from 30 yards out whistled just a few inches over the bar.
Dortmund then had a chance from distance of their own as Robert Lewandowski let fly with a dipping half volley which forced Michael Ratajczak to dive to his left to save.
The hosts were giving a good account of themselves with some spirited play in midfield, and continued to pepper Roman Weidenfeller’s goal from long-range, with Andreas Lambertz drawing a smart stop from the keeper from the edge of the area.
Matters became complicated for Jurgen Klopp and his men in the 34th minute, as defender Owomoyela brought down Sascha Rosler just outside the box, leaving referee Manual Grafe with no choice but to show him his second yellow card.
Dortmund were somewhat fortunate to go into the break with the scores level as Fortuna had been the better side, and the pattern only intensified as the second half progressed.
Rosler twice went close, first with a header seconds after the restart, and then with a cheeky lob from the edge of the area that flashed just wide of the woodwork.
The tempo of the game died down soon after, as both teams seemed to be saving their legs for the inevitable extra time period which duly ensued.
The Fortuna offensive continued, and Rosler should have done better when he headed Broker’s brilliant cross over the bar from five yards out. Dortmund were given a further scare with Piszczek’s back-header almost sneaking inside the post, but for the outstretched arm of Weidenfeller.
The visitors themselves went close soon after, with Lewandowski coming within inches of turning Kevin Grosskreutz’ low cross home from 10 yards out.
However, at that point both sides had just about reached the limits of their stamina, and could not muster anything else as the tie moved into penalties.
In the shootout, Weidenfeller came up with the goods once again as his save from Brocker's spot kick was enough to see the defending Bundesliga champions defeat their second-tier opponents 5-4 on penalties, and secure a quarter-final berth.