Monterrey dominated Dortmund throughout the game, but the result was not on their side. Monterrey had 14 shots, 7 were on target. Dortmund was lucky to score early goals in the first half of the game, otherwise, the game may have ended a different way. According to the highlights of the game that I watched, Dortmund defense is not great, they were able to qualify because their goalkeeper prevented Monterrey from scoring.
G. Kobel is the Dortmund goalkeeper who I think is one of the most instrumental savers in that match. Dortmund's defense is actually good. It's just that there are still several gaps that the opponent has managed to exploit. But we must also praise the effectiveness of Dortmund's attack in the first half. Producing 2 goals in the first half really brought Dortmund to victory. Monterrey tried their best and yes they played very well. It's just that luck hasn't been on Monterrey's side.
Dortmund seems unlucky in the quarter-finals because they have to face Real Madrid. And yes, it is a match that will be on a very different level compared to facing Monterrey. So Dortmund really has to prepare better.