The Haaland hype is real.
He had enjoyed a largely quiet first half but the Norwegian was in the right place to stab his shot into the roof of the net midway through the second half to make the decisive action of the contest.
And after Neymar had tapped home an equaliser, Haaland rose to the task again, collecting a through pass from Giovanni Reyna onto his left foot to lash home a stunning strike high into the roof of the net, giving Keylor Navas absolutely no chance whatsoever.
It was a game where many neutrals had expected fireworks given the attacking talent on display, but after a cautious, low-key first half things only burst into life when Haaland broke the deadlock.
Neymar cracked a shot against the post late on but Dortmund will take their slender advantage to Paris for the second leg next month.