Union Berlin win. Borussia Monchengladbach and Borussia Dortmund also picked up wins this week. Bayern Munich fans should be heartened to see their team's position in the fifth position of the Bundesliga standings for a while. Union Berlin performed exceptionally so that they are now firmly in 1st position in the standings.
Union Berlin had a perfect start to the season by winning 5 wins and 2 draws to take them to the number 1 position for now, but so far I see if the opponents they have just faced are still only teams that are at their level or lower except for Munich who succeeded they held a draw in the previous two weeks, in my opinion at this time munchen fans are not too worried about the position of their team because the depth of the squad that munchen has is very promising to reclaim the top of the standings from other teams, munchen is currently just waiting for the right momentum before they show again their ferocity in the Bundesliga later.
Bayern Munich has a difference of 5 points with Union Berlin. If it is calculated from the squad that is owned by Bayern Munich, of course it is not a difficult thing. This means they are still able to catch up. The problem is this mathematical calculation sometimes does not apply in the field. I gave the example of Leichester City in the 2015/2016 English Premier League season. They succeeded in proving that mathematical formulas did not apply on the football field and they managed to lift the trophy at the end of the competition despite the depth of the squad owned by C. Ranieri and many other examples.
Back to Bayern Munich. I myself am still very confident that they can return to the 1st position in the Bundesliga even though luck may belong to Union Berlin this season.