Dortmund's Pierre-Emerick Aubameyang celebrates after scoring a goal against Bayern Munich during their German Cup (DFB Pokal) semi-final soccer match in Munich, Germany April 28, 2015.[Photo/IC]

WAKE-UP CALL

It was the wake-up call Dortmund needed and twice they had the chance to score again as the game turned on its head but Bayern goalkeeper Manuel Neuer's superb reflexes denied Marco Reus and Henrikh Mkhitaryan.

Bayern then lost winger Arjen Robben, who had come on as a substitute following a stomach muscle injury last month but lasted only 16 minutes.

"We played a great game and in the first half they had no chance," Bayern coach Pep Guardiola said. "We had some problems for five or seven minutes. I am very proud of my team.

"As for the penalties, this happens. Penalties are always about controlling emotions and maybe we were a bit tired."

Dortmund were reduced to 10 men in extra time following the dismissal of Kevin Kampl but kept their cool and keeper Mitch Langerak made the save of the game by stopping Bastian Schweinsteiger's point-blank header.

They then converted two penalties, as Bayern's hopes were dashed when their first two takers missed after slipping before Mario Goetze's spot kick was saved and Neuer rattled the bar.

Bayern Munich's Robert Lewandowski celebrates after scoring a goal against Borussia Dortmund during their German Cup (DFB Pokal) semi-final soccer match in Munich, Germany April 28, 2015. [Photo/Agencies]