While things are clearly different for Croatia, they really weren't expected to win against Brazil. I have looked at several betting books and all are favoring Brazil to win so the odds for Croatia are really high. On some sites, the Croatian odds are close to @8, that's clearly a trap for bet.
I was tempted by the amount of odds given for Croatia on several betting sites. I will probably make 2 bets (1 choose to win Brazil and 1 choose to win Croatia) for fun.
After my analysis, Croatia is weak in defense. My analysis reference is when playing against Japan. Croatia's defense freaked out against Japan's quick game. Against Brazil tomorrow at the Education City Stadium, it is likely that Croatia will make some changes to the line-up that will be installed. The change is in the left back position which is predicted to be occupied by Sosa. Sosa did not play against Japan because Zlatco Dalic chose to play Darisic.