- Brooks 'confident' ahead of trip to Denmark.
- Hertha have 1-0 lead after first leg.
- Ibisevic got the only goal of the tie so far.
Pal Dardai's men head to Denmark for Thursday's second-leg meeting leading 1-0 on aggregate after Vedad Ibisevic's strike gave them victory at the Friedrich-Ludwig-Jahn-Stadion last week.
"It'll be similar to the first leg - a tight, intensive game," said Brooks after making his first competitive outing since his involvement with the USA at the Copa America Centenario. "If we go into it with the same approach and attitude, I'm convinced we'll reach the play-offs."
Brooks made an impressive contribution to the USA's run to the semi-finals on home soil in the summer, emerging as one of the stars of the tournament.
The imposing centre-back is expected to also be a key figure in Dardai's plans as Hertha aim to build on the promise of last season's seventh-placed finish, and though Brooks may be short of match practice, the 23-year-old insists he is already in shape for the 2016/17 campaign.
"Of course for me, personally, it was good that we started immediately with a win. I also felt good physically. Of course, the legs were a little heavy at the end, but that is also how things are in pre-season. It was important that we stuck together as a team and defended our lead. That puts us in a good position for the return."