1. Brazil v Croatia: Neymar vs Modric
In a match which saw quite a few controversial moments, this was what started it all. Just before equalising for the Samba warriors in a splendid fashion, Neymar was guilty of deliberately elbowing Luka Modric for which the referee let him go easily as it was only a yellow card. While many commentators believed it should have been a red, Neymar later said there was no 'malice' in the elbow. It did change the result of the match though.