The home team was completely overwhelmed on the pitch.
But Dortmund failed to score again.
It wasn't until after the 30-minute mark that the Bumblebees launched another fierce assault.
Just two minutes later, Schmelzer pushed forward on the left flank, combining with Grosskreutz to orchestrate an attack.
From outside the right corner of the box, Grosskreutz delivered a diagonal pass.
Inside the box, surrounded by players, Wang Shuo controlled the ball with the outside of his right foot, then suddenly spun and lashed a shot with his left.
The ball shot into the bottom-left corner of St. Pauli's goal with incredible speed.
2-0!
This goal reignited Dortmund's fighting spirit.
Just seven minutes later, an attack developed on the right. After Götze and Kuba linked up, Kuba chipped a pass to the far post. Grosskreutz, making a run into the left side of the penalty area, headed the ball into the net.
3-0!
