Dortmund were unable to break the deadlock in the first-half, but it was a completely different story in the second stanza.
"I only said one sentence during the half-time break: 'We need to keep doing what we're doing'," he said.
"We pressed well, we tired out our opponents, and it was clear that they wouldn't be able to keep up the tempo all the way to the final whistle.
"We wanted to make sure they couldn't hit us on the counter, as they have a lot of pace up top.
"We were able to maintain the intensity we showed in the first half and the only real change we made was some alterations to our wide players' movements."