At least they should try to defend their first position because it is very difficult to maintain the best position because there will be many opponents who will try to knock them down.
One of them is Dortmund, and both will face each other on Alte stadium Berlin next week, so if Union doesn't have trouble and can win easily will determine their next step. Union is beyond expectation for this session, many observers said this season is the same as last year with the same club, Bayern, Dortmund, and Leipzig, but Union appears at the top of the rank. with this hype, Union will make a surprise win with 2 different goals next week.