Juventus lost 3-0 to Villarreal in the second leg of the Champions League quarter-finals, losing 4-1 on aggregate. It is reasonable to say that the teams that can break through in the Champions League group stage are not weak teams, and Juve's loss is not incomprehensible, but Juve's fiasco is indeed unexpected by everyone.

The Italian team took full initiative in the first half and even suppressed Huang Qian very badly. But when I came back from halftime, the whole team was like a breakpoint, completely sleepwalking. It wasn't until Huang Qian scored the first goal that Juve began to be anxious. But their attack still couldn't speed up, and their kicks were dead. The defensive end also began to suffer from a lack of attention due to the decline in physical strength. In this way, Huang Qian took advantage of Juve's weakness to defeat Juve and advanced to the quarterfinals of the Champions League.
The old woman introduced Vlahović in the winter window, which was seen as a reinforcement enough to propel Juve into a new chapter. But Vlahović is still too young after all, and a big scene like the Champions League is not enough to be the one who turns the tide, nor is he enough to be the spiritual support of the team when he is behind.
The impact of Chiesa Jr.'s absence on Juve is irreparable, but even so, in terms of strength, Juve are still above their opponents. The lack of a spiritual leader is the biggest problem with this team, which may not be obvious in ordinary times, but it is particularly prominent when it comes to the headwinds of important games.
United also encountered Huang Qian in the group stage this season, but they delivered the perfect answer sheet for a double-match opponent. Ronaldo's flawless performance helped the Red Devils to qualify as the number one in the group. Even though Juve still had various problems when Ronaldo was there, his competitive spirit and persistence when he was behind were still irreplaceable in the Juve squad.
Juve have problems on all fronts, especially in midfield, with no point to play, which is very difficult in the Champions League. Allegri's own tactics are also questionable, it is completely impossible to see what kind of offensive system, all depends on the personal ability of the stars, it is no wonder that last year Real Madrid preferred to invite Back Ancelotti, who coached Everton, rather than invite Uncle Lu.
A team like this, even if the strength of the platoon is dominant, but lacks the necessary mental attributes, it is indeed difficult for them to go far in the Champions League.