#3 Vengeful Brazil
It's safe to say that nobody has forgotten about Germany's massive 7-1 victory over an out of sorts Brazil side four years ago in the semi-finals. While this huge win paved their way to the title back then, it could come back to haunt them in Russia.
Should the Brazilians have the pleasure of facing off with the Germans again, they will do everything in their power to get one back at their rivals. A scoreline of the same extent as 2014 may be highly improbable, but knocking out the champions would at least be the first step towards mending their wounds.
The Selecão is, as always, one of the favourites to go all the way this year and their team has improved since the debacle in 2014 - especially since Tite took over as the coach.
With the added possibility of Neymar, who is the undisputed emotional leader of the side, being available this time around, the writing could be on the wall for Joachim Löw's side.