Source of the incident
Real Madrid's 2-1 victory over Barcelona last weekend helped them widen the gap with their opponents on the rankings to 5 points. After losing all 4 El Clasicos last season, Real Madrid is looking to regain control this season.
In last weekend's victory, not everything was perfect for Los Blancos, especially the images related to Vinicius Jr. In the 72nd minute, when the score was 2-1, Vinicius was withdrawn to make way for Rodrygo. The 25-year-old star's attitude afterwards was difficult to watch.
He was very surprised, then repeatedly shouted at Alonso as if he did not accept this decision. When he was substituted, Vinicius reluctantly hit Rodrygo's hand and headed straight into the tunnel. The Brazilian striker has shown a weak impression. He told assistant sebas Parrilla directly: "It's always me. I will leave this team, it is best for me to leave, right now".
A few minutes later, fans saw Vinicius return to the technical area but nothing happened yet. A moment later, both Kylian Mbappe and Jude Bellingham were also withdrawn, they were the ones who scored to bring victory.
However, it did not stop there. In the final minutes of the match, a near-match took place when Vinicius was the one who scored. He provinceised Barca players and almost got into a fight with his teammate Raphinha in Brazil.

Xabi Alonso and Vinicius' relationship has never been smooth
Alonso kept Vinicius on the bench in the FIFA Club World Cup semi-final against PSG in July, before Trent Alexander-Arnold suffered a muscle injury. In the end, Alonso let the Brazilian striker play on the right wing instead of his forte on the left wing. After that, Vinicius did not play well, tying the overall picture of Los Blancos' 0-4 loss.
Since then, Vinicius has not been satisfied with Alonso. Since the point of dismal start in early August, Vinicius has only started 3/10 matches. Even in Real Madrid's 13 matches since the beginning of the season, the Brazilian striker has not played in 3 matches.
After the match, when answering Real Madrid TV, Vinicius did not mention the inappropriate actions towards Xabi Alonso. The 25-year-old striker also lowered his tone when talking about the clash between the two teams when the final whistle blew.
" El Clasico has always been like that, there have been things both on and off the pitch. We always try to balance everything but we can't always do it" - Vinicius shared.
As for Vinicius' family and representative, they are also unhappy with Xabi Alonso. They cannot explain why this coach replaced Vinicius in the context of him still playing well and the El Clasico match was still very tense. Before being substituted, Vinicius was the one who brought home a penalty (later denied by VAR). He also contributed greatly to Bellingham's goal.

When asked about the decision to take Vinicius off the pitch and the striker's attitude, Xabi Alonso was very calm at the press conference. The young coach said he did not want to lose focus on un important things but would hold an internal meeting to solve this problem.
Vinicius' current contract with Real Madrid is valid until 2027, but the two sides have not shown any signs of negotiations. The 25-year-old striker believes that the current unfavorable decisions come largely from Alonso, not the club's management.
All of this shows that there has always been a division between Alonso and Vinicius since the Spanish strategist arrived at the Bernabeu. If this disagreement is not resolved soon, Los Blancos will struggle more or less internally.