Hansi Flick's side collected 31 points from a possible 33 before the coronavirus-enforced shutdown and will be looking to pick up from where they left off. Opponents Union have very much been the division's surprise package in their first season at this level, with Urs Fischer's men finding themselves 12th in the table with this game in hand to play on the sides directly above them.
The Bundesliga is back following a two-month break owing to the coronavirus pandemic, and it has already been an eventful weekend in Germany's top flight. RB Leipzig were held 1-1 by Freiburg on Saturday, but fellow top-four sides Borussia Monchengladbach and Borussia Dortmund both picked up victories, with the latter now within a point of leaders Bayern.