#2 Manuel Neuer being beaten twice at his near post
Despite some questionable displays at times, Manuel Neuer has retained his status as one of the world's best goalkeepers, with the 33-year-old's presence undeniably a reliable, calming influence on the Bayern back line.
Although he was kept busy last time out against Spurs, Neuer will be frustrated with the way Hoffenheim scored both goals. The first didn't look good from his perspective, even though Jerome Boateng was back-pedaling and partially obscuring the German international's view as Adamyan took aim.
Shifting even half-a-step across to his right, as he did in this instance, proved crucial as it meant he was unable to recover in time to dive back quickly and palm the effort to safety.
Meanwhile, the winner was more of the same, this time with Hoffenheim countering down the left-hand side.
Adamyan took one touch to set himself, evading Niklas Sule, before sweeping goalwards with a static Boateng not close enough to block or affect his strike in any way.
This effort flew into the bottom corner, and despite Neuer's body position suggesting that he was prepared for a similar shot to the one previously conceded, he didn't fully extend his body quickly enough to respond with what could have been an excellent save.
Neuer made three saves, completed 80.8% of his passes and was otherwise solid, but in games that are defined by such fine margins, his role in both Hoffenheim goals will be rightly questioned.