Marius Bulter bagged a brace as Union Berlin claimed a first ever Bundesliga victory with a stirring upset of title challengers Borussia Dortmund at the Alte Forsterei.
On-loan winger Bulter dared fans of the newly-promoted side to dream when he gave the hosts a surprise lead midway through the first half although Paco Alcacer soon equalised for Dortmund.
Bulter struck again five minutes after the resumption to restore Union’s advantage before Sebastian Andersson sealed a 3-1 win with a quarter of an hour remaining.
The defeat was Dortmund’s first of the season and their first in any competition since the end of April while Union were left toasting a memorable day in their 53-year history.
They started well enough but were unable to take advantage of Julian Brandt’s inviting ball across the area while Marco Reus went close with a free-kick.
Union were pegged back three minutes later as Jadon Sancho’s perfectly-weighted ball into the area led to a sliding finish from Alcacer.
Sheraldo Becker narrowly failed to get on the end of Robert Andrich’s ball through, while at the other end an unmarked Reus saw his effort denied by Rafal Gikiewicz on the stroke of half-time.
They then fell behind again five minutes after the resumption, with Andersson skilfully going past Manuel Akanji and although Burki parried the Swede’s effort, Bulter was on hand to score on the rebound.
Union defended stoutly thereafter to keep chances at a premium to frustrate Dortmund on a forgettable night for last season’s runners-up.
