The score from the 3-0 win is certainly not something lucky except for the score of 1 goal from a penalty kick, Croatia's performance has decreased in this match and I didn't expect them not to do anything potential to score goals even in the second half they seemed to be playing in the friendly league without thinking about losing 3 goals . Brazil should have deserved to face Argentina in the semi-finals but Brazil was unlucky on penalty kicks.
But croatia played well against brazil, much different against argentina tonight. Croatian players seem to be losing performance. In the early minutes, Croatia had 54% of the ball, but could not attack. They only played in the back and midfield. Meanwhile, Argentina only took advantage of counterattacks. Messi and Alvarez are quite dangerous for Argentina's front line. Both of them can run fast, making it difficult for Croatian defenders to stop their attacks.
Croatia played well when Argentina haven't scored their first goal, immediately Messi scored the first goal through penalty croatia performance changed and they started playing with pressure to equalize the game. The first goal disorganised Croatia, this was the reason why it was easy for Argentina to score more goals. Alvarez really tried for Argentina, if not the two goals he scored for Argentina it would have look as if Argentina won by luck.