Borussia Dortmund goalkeeper Gregor Kobel is confident the team will only get stronger this season, despite losing the Franz Beckenbauer Supercup to Bayern Munich.

Bayern won the curtain-raiser for the German season 2-1 at Signal Iduna Park, with Dortmund giving themselves a mountain to climb after going 2-0 down by half-time.

Nathaniel Brown and Michael Olise put Bayern in control before the break, and though Fabio Silva pulled one back for Dortmund, it proved a consolation in the end.

Dortmund, playing at their home stadium, also ended the match with 10 men after Ramy Bensebaini’s late red card.

The Black and Yellow have lost their last three in a row in the competition, a run only previously seen by Bayern between 2013-14 and 2015-16 (including penalty shoot-outs).

But Kobel believes Dortmund will build on the positives from their performance as they prepare for the start of the Bundesliga next weekend.

"Bayern had very good chances throughout the game and could have scored more goals," he said. "In the end, it was a shame because we still had chances.

"There were a lot of good moments here and there; you could see some promising signs.

"You could also tell that many of the lads are still new and don't have that much experience yet, which is normal in a situation like this. But I believe we'll keep getting stronger."

Bayern were a dominant force in the game, as they had 21 shots with 10 of those on target, while Dortmund mustered just eight, though they were worth 1.6 expected goals (xG).

Seven of those came in the second half after a disappointing first 45 minutes, and head coach Niko Kovac was particularly impressed with how Dortmund responded after the break.

"It was an intense game from both teams. There were chances on both sides," he said.

"We got off to a solid start, but then we let Bayern gain the upper hand with a few mistakes, and we had to defend a lot. Bayern had two more good chances at the end of the first half.

"The second goal before half-time, in stoppage time, was frustrating. When you go into half-time down 1-0, you still have a chance to come back in our stadium.

"The second half was really good. We took more risks. We had more possession, were more dangerous, and were more aggressive."