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Dortmund had to come from behind to earn a 3-2 win over Heidenheim, with Serhou Guirassy scoring a brace to seal the victory.

The Black and Yellow had taken the lead through Waldemar Anton, though found themselves on the back foot three minutes into the second half after Julian Niehues scored on either side of half-time.

Dortmund maintained its unbeaten record at home in the top-flight this season.

It was a vital three points in itsr pursuit of Bayern, which dropped points for the second week running in the league, with Schlotterbeck keen to keep the pressure on his side's rivals.

"As BVB, you also have to have the ambition to tell the fans that we want to become champions," he said. "Now we have six points, three fewer than after the winter break. That's why I, and the lads too, can say we want to attack now.

"We won with a bit of luck, but I couldn't care less. That's football. Maybe they'll [Bayern] start to think about it."

Dortmund is on a four-game winning streak in the Bundesliga, while it also extended its scoring streak to 28 games in the top-flight.

"We controlled the first half, and then it's 1-1 because Filippo (Mane) gets injured," Schlotterbeck said. "In the second half, there were some crazy moments for both sides. We had a lot of chances, but we also allowed them a lot and were a bit fortunate to win – but we got the win."