Is there such thing as luck in football?, well, that I can not tell. But one thing that I know for sure is that the team that takes/capitalize on their chances ends up winning the game.
Of course there is luck in football. I understand it's not something you can actually touch or see but there are teams that, in general, are luckier than others. We were talking about Real Madrid, it's extremely difficult to see Real Madrid getting a red card, a disallowed goal or even an injury to their best players. It could be that the referees are scared of RM, it could be they get some type of "suggestions", I don't know, but all this, for me, falls under the "luck" category.