The Borussia Dortmund players may have thought that after their special training, they could beat Barcelona at home.

But when the game started, they quickly realized they were being delusional.

The powerful Barcelona used their passing and controlling ability to firmly control the situation on the field, while using tireless running and pressing to cut off the connection between Zhou Yi and other Borussia Dortmund players.

This caused Borussia Dortmund to gradually fall into trouble five minutes after the start of the game.

They originally wanted to beat Barcelona at home, but now they find that the most important issue is not winning, but not losing…

So, under the pressure of Barcelona, Borussia Dortmund had to switch from attack to defense, first trying not to concede a goal.

But this did not surprise or surprise the audience. Because in their view, this game should have been like this.

Even at Borussia Dortmund's home stadium, given the huge gap in strength between the two teams, it was impossible for Borussia Dortmund to gain the upper hand at home.

If they were lucky, they might be able to steal a victory at home with a sneak attack counterattack. But the odds of such good luck are too low.

If they have normal luck, Borussia Dortmund will undoubtedly lose the game.

If they have bad luck, maybe the first leg will end all the suspense of the two-leg match.

At the end of the first half, the score was 0:0. Borussia Dortmund did not concede a goal, but they did not score either.

But this result has already allowed many Borussia Dortmund supporters to breathe a sigh of relief.

At least Borussia Dortmund was not behind in the first half.

This is already a very good result.

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In the second half, the two sides changed sides and fought again. Klopp also realized through the performance of the two sides in the first half that it was difficult to use Borussia Dortmund's style of play at home to deal with Barcelona.

If they continue to play like this, Borussia Dortmund is likely to lose the game at home.

This is not the result Klopp wanted.

A game has three results: win, draw, and loss, and losing at home is the worst of all results.

So he made adjustments during the halftime break to make the team focus more on defense.

The players also had no objection to this. After competing in the first half, they also realized the huge gap between themselves and Barcelona.

Although they used footbonaut for special training, how long did they train? Less than two weeks.

And how long has Barcelona been practicing passing and controlling the ball? Twenty years.

Can the huge gap between them be bridged by two weeks of special training?

Obviously not.

At this time, being realistic is more important.

For Borussia Dortmund, who played the first leg at home, it would of course be better to win at home. But what if the opponent is too strong and they really can't win? Don't lose, getting a draw is also a very realistic consideration, but the important thing is that this draw must not be something like 1:1 or 2:2, it must be 0:0, it can only be 0:0.

In the two-leg knockout system, away goals are very important. In any case, the opponent cannot be allowed to score an away goal.

Klopp repeatedly emphasized this point to his players during the halftime break - if they can score, great. But if they can't score, then don't let the opponent score.

So Borussia Dortmund was obviously different in the second half from the first half.

They spent more time defending in the backcourt.

Commentators had mixed opinions on his adjustment.

"Klopp made adjustments during the halftime break, and Borussia Dortmund is paying more attention to defense in the second half. But I don't think this is a correct choice. Because Borussia Dortmund is not a team that is good at defending in the penalty area. It is difficult for them to hold on until the end of the game by using a method they are not good at to deal with Barcelona. If Borussia Dortmund, who has given up the attack, concedes a goal in the game, I am afraid it will be too late to counterattack..."

"Borussia Dortmund's contraction of defense is a correct choice. If they continue to attack Barcelona in the midfield, they will concede a goal sooner or later. Obviously, Borussia Dortmund's midfield is not as good as Barcelona's midfield. Barcelona's frontcourt, with Xavi, Iniesta, Messi, Keita, Busquets, and Sanchez, is better than Borussia Dortmund's frontcourt..."

Both of these statements are recognized by some people and make sense.

But the players on the field must choose one and abandon the other, because thinking too much is more terrible than choosing the wrong one.

Borussia Dortmund's choice surprised Barcelona a bit. They had analyzed Borussia Dortmund before the game and thought that Borussia Dortmund could not play too conservatively at their home stadium, and the Borussia Dortmund players seemed confident in interviews before the game and were not afraid of Barcelona.

The same was true in the first half. Borussia Dortmund actively fought and entangled with Barcelona in the frontcourt.

Why did they become cowards after the halftime break?

Despite the surprise, Barcelona took advantage of the situation and launched a fierce attack on Borussia Dortmund.

The ferocity of the attack caused the sweat in the palms of the Borussia Dortmund fans in the stands and in front of the TV to never dry...

In these fierce attacks, Messi is naturally the most prominent person. Whether it is dribbling or shooting, he can always bring great threats to Weidenfeller's goal.

However, the person who constantly supports Messi behind him is Xavi, who does not seem to be so prominent.

He organized Barcelona's midfield in an orderly manner. If Barcelona's offensive is like a tide, wave after wave, then Xavi is the magnetic field, the reason for the tide.

The Catalan commentators naturally praised Xavi's performance, believing that it was ridiculous that some media compared Zhou Yi to "Xavi's successor" before the game.

"...We can see very clearly in this game the gap between Zhou Yi and Xavi. Yes, Zhou Yi is a very talented player. In time, he will become a very good midfield organizer, but now, he is not just a little bit worse than Xavi, especially in terms of controlling the rhythm, controlling teammates, and controlling the team's control. He is much worse than Xavi. This is also why Borussia Dortmund was firmly suppressed by Barcelona in this game..."

"I don't think it is necessary for the media to hype up topics such as 'Xavi's successor' now. Xavi is only thirty-two years old now. With his playing style, he will definitely not retire at the age of thirty-four. He can maintain a high level for many years. I don't think we need to find a successor for him for at least the next four years..."

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However, although Barcelona's offensive was fierce, Borussia Dortmund's goal remained unbeaten.

Because many people have overlooked one point, that is, Borussia Dortmund's defense is actually not weak. You must know that they conceded the fewest goals in the entire Bundesliga last season, and the central defender combination of Subotic and Hummels is the most successful defender partner in the Bundesliga.

And not just this central defender partner, you must know that they only conceded twenty-two goals throughout the season. It is impossible for this to be the credit of only two central defenders. Defense has never been the job of one or two people. It requires the team's tacit cooperation and sacrifice.

So Borussia Dortmund's defense is not as bad as some people think.

With ten minutes left in the game, the score was still 0:0, which was a bit surprising and unexpected.

I didn't expect Borussia Dortmund to be so tenacious.

At this time, some subtle changes took place in the situation.

Barcelona realized that they needed to take some very high risks to beat Borussia Dortmund away. Because it has been eighty minutes, and Zhou Yi has not been replaced by Klopp. Everyone knows that Zhou Yi has very accurate passes, and he has the ability to launch and organize quick counterattacks.

Everyone knows what Klopp's intention is to keep Zhou Yi on the field.

It's just to take advantage of Barcelona's large-scale offensive and launch a sneak attack.

Originally, Barcelona saw that Borussia Dortmund's defense was so tenacious, and they had the intention of withdrawing their troops. In addition, Zhou Yi has been staying on the field, using a long pass from time to time to harass their defense. Barcelona is even more unworthy of losing a goal in the final moments for an away goal.

Anyway, they can't accept the final result of 0:0. The next leg is their home game - this is the advantage of the away-and-home game arrangement. If Borussia Dortmund's home stadium is a devil's home stadium, then Barcelona's home stadium is a hellish home stadium!

They are confident of eliminating Borussia Dortmund after returning to their home stadium.

In this case, if they lose the first leg away, it will increase Barcelona's workload in the second leg, which is not worthwhile.

Under the guidance of this thought, the Barcelona players on the field also slowed down their rhythm. When they control the ball, they will no longer rush to pass the ball forward, but pass it back and forth in the midfield more to brush up the ball control rate and prevent Borussia Dortmund's counterattack.

When the referee blew the whistle for the end of the game, the score was fixed at 0:0.

Borussia Dortmund had no way to deal with Barcelona at home and could only choose to keep the draw. And Barcelona obviously left some room and did not go all out.

This result may be acceptable to both sides.

But although both sides can accept it, the mentality of different teams is still different.

For Borussia Dortmund, a draw is a result that they had to accept in a situation of utter helplessness - it's better than losing, right?

For Barcelona, it doesn't matter -

"A draw? Oh, okay, whatever, anything is fine. Anyway, this game is not important..." with a shrug.

At the end of the game, the TV broadcast gave some shots of the Borussia Dortmund fans in the stands. In the shots, some of these Borussia Dortmund fans were holding their heads in their hands, and some were frowning regretfully.

Obviously, they all know that for Borussia Dortmund, failing to win Barcelona at home means that most of their bodies have been eliminated.

Marcel Reif also said: "Although I don't want to say that, we have to recognize the reality. Borussia Dortmund is likely to be stopped in the Champions League quarter-finals for two consecutive seasons - although this is a very good result for them. Before, no one thought that this young team could achieve such results in the most competitive and highest-level competition for two consecutive years... Well, now Borussia Dortmund can concentrate on the league. I think there is no suspense about the league title this season!"