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You provided excellent breakdown of Real Madrid match going beyond 2-1 final score. You correctly noted that having three goals disallowed for offside points to lack of precision and you are very right about Vinicius Jr. selfish play which is major team issue even though he scored. And exactly they were lucky that goal line clearance saved them from tie proving that they got win but they did not play well and have serious problems to fix.
I agree with you. The decisions that were made except for the one that was ruled out for offside were very disturbing for football fans. Using VAR is a way to control the field and make precise decisions, but it is also a painful experience for fans of any team. Real Madrid played well it is true but it is their own fault that they missed so many goals due to little mistakes. As a traditional team Real Madrid should try to play more perfect football if they want to win trophies this season.