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Something always happens in the 2nd round. Initial reactions and observations

Mainz came here to turtle and only achieved their objective in the 2nd half where Bayern Munich were winding down after the subs. This game proves that you need a properly organized defense to shut down this team, it can?t be something half-baked.
Vincent Kompany made the right move subbing Musiala and Kane early once the win was secure. Bayern Munich should do this more often. Yes, the scoreline didn?t end 9-0, but preserving those two will be key to the season.
With Upamecano and Dier both injured and Hiroki Ito still out, the backline is running on fumes at the moment. At this rate, Kompany might have to suit up himself before the Hinrunde is over.
Looking for more thoughts and analysis from Bayern Munich?s 4-0 dismantling of Mainz 05 in the DFB-Pokal" Awesome, then we have you covered with our Bavarian Podcast Works ? Postgame Show. You can get the podcast on Patreon, Spotify, or below:

Full time: Bayern Munich win 4-0!

75? ? Eric Dier has gone down injured, it looks like he pulled a hamstring.

45? ? The second half is underway. Kane and Musiala are off, Tel and Müller are on.

Halftime: Bayern Munich 4-0 Bayern Munich.

45? + 3? ? GOOOOOOOOOOOOOOOOOOOOOOOOAL! Musiala gets his hat trick! 4-0!

45? ? GOOOOOOOOOOOOOOOOOOOOOOOOOOAL! Leroy Sané right at halftime!

37? ? GOOOOOOOOOOOOOOOOOOOOOAL! Musiala makes i...