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If Lazio succeeds in taking advantage of Bayern Munich instability in the second leg, of course Lazio will create an unexpected surprise. But I see that Bayern Munich have managed to get through their difficult times in the Bundesliga where they have returned to winning ways. For the second leg, Bayern Munich are still very much favored because they are playing at home and also in terms of strength they are still very favorites to beat Lazio.
It's just that if Lazio plays defensively well enough then they have a chance to end the match with a draw and they will qualify for the next round. But Harry Kane will definitely work hard to score goals and bring Bayern Munich through to the next round. There must be no reason to make things difficult for Bayern Munich in the second leg because I checked that all the main players are ready to be in the starting eleven so Tuchel has a big opportunity to take advantage of the second leg to get their revenge.
It is very likely that Lazio will not be able to win the second leg and they also do not have a big chance of maintaining their aggregate lead. I don't use the first leg as a benchmark that Lazio will have the same performance, so I really don't expect any surprises in the second leg that make Bayern Munich fail to qualify for the quarter-finals.
Bayern Munich only needs to think that Lazio did not come to lose, so it is not good to underestimate Lazio. Tuchel is responsible for his team's performance and he must do better to ensure Bayern Munich progress to the quarter-finals.
Bayern Munich is supposed to beat Lazio with a minimum of 2-0 scoreline at Allianz Arena. Bayern Munich has been inconsistent lately, both in the Bundesliga and the Uefa Champions League. If Bayern Munich wants to beat Lazio easily tonight, they should improve their performance against Lazio; if not, there might be a surprise at Allianz Arena.