The German Champions enjoyed a tough match at Old Trafford, coming back to a 1-1 draw through a Bastian Schweinsteiger effort.
When Lewandowski comes in, they could be unstoppable
Much like Guardiola in his Barca days, Bayern have been prepared to play a player in the 'false 9' position, often going with one of either Mario Gotze or Thomas Muller. The problem with this is not that it doesn't work, it is that Gotze and Muller are better in other positions than they are playing the withdrawn striker. When Robert Lewandowski arrives in the summer, as complete a centre forward as there is in world football, Bayern are going to be frightening.
Why would Kroos want to leave this Bayern team?
The rumoured United target was occupying his favoured slot in the playmaker role, and though he didn't perform as well as he did against Arsenal at the Emirates, he still clearly has a prominent role in this exciting team. Why he would want to swap such a position in a team at the peak of club football for a side struggling to get anywhere near Champions League football is hard for many to understand. But despite all of this, Kroos looked disappointed with Guardiola at his substitution, and there is always the chance that the superb United support may have made a mark on the Bayern number 39.
Bayern proved they're not infallible
Pace with the ball on the ground through Welbeck and, at times Valencia, and power in the air from set pieces, as perfectly demonstrated by Vidic. It wasn't an attractive footballing performance by United by any means, but to a large extent, they did what they had to. Encouraged by the Old Trafford faithful, the German champs showed that they could be very much rattled by a side nowhere near as good as them. The problem for the Reds is that right now, Bayern are still in the lead, and United don't have the terrific home support to spur them on.
Schweinsteiger will be a big miss in the second leg
The German international scored a superb equaliser for the visitors, with a terrific left foot shot that found the top corner from Mario Mandzukic's knockdown. After his two yellows, he, and Javi Martinez, will be ruled out of the return leg, and as Bayern's midfield lynchpin the flowing passing play will be that much weaker. Guardiola will now face a conundrum as to who to play in that central position, given that the two Spaniards, Thiago and Martinez, will also be absent.
Bayern will have to guard against what happened last year against Arsenal
Last year, Bayern experienced a difficult game against English opposition when Arsenal came to the Allianz and won 2-0. That was a different game in the sense that the Germans returned to their ground overconfident of an easy win, but they would do well to realise that any kind of defeat or score draw would swing favour back towards United, and there is enough quality in this United team to surprise Bayern. It is essential they approach this game with absolute concentration and care.