Was the first world cup opening match unfair? Croatia coach said it was unfair

Croatia coach, Niko Kovac has lamented on the referee that he was unfair at the first opening game against Brazil from which Croatia was beaten 3-1.

Kovac said there is no point of his team remaining in Brazil for tournament as he said to be unhappy with the penalty given to Brazil as he mentioned to be unfair.

" It can't be like this in our opening match, this is unfair," Niko Kovac  said.

Luiz Felipe Scolari, Brazilian coach in his opinion said the referee was fair, in reverse of statement from Croatia coach.