The German outfit have been dealt a series of blows this summer with the departures of Havard Nordtveit and Granit Xhaka to West Ham and Arsenal respectively.
However, Andre Schubert has done his utmost to repair the duo with the arrival of the highly-rated Vestergaard, who can operate at both centre-back and in defensive midfield.
The 23-year-old could fill in alongside Andreas Christensen – where Nordtveit often played this season – or in Xhaka’s position, where the latter usually patrolled the team’s defensive third.
Vestergaard, who is remarkably 6ft6, has earned eight caps for Denmark since making his debut in 2013, after he represented the youth teams at under-18, under-19, under-20 and under-21 levels.
Vestergaard, who was also eligible to represent Germany through his mother before opting to link up with Denmark, started his professional career with Hoffenheim before leaving there in 2015.
The talented defender opted to join Werder Bremen in January 2015 and after less than 18 months there, he has now decided to make the move to Borussia-Park.
The Copenhagen-born defender was ever-present for Bremen this season, missing just one league game. Furthermore, he won a hefty 143 headers in the Bundesliga – more than any other defender in Germany’s top-flight – for Viktor Skrypnyk’s side, as they finished 13th.