I am doing a World Cup fantasy competition so had to try to decide which teams may stay in, and which teams may go out, to try to decide who to leave in my team.
I agree with others that Columbia have a good chance of beating Brazil.
Brazil have been very poor (in my fantasy league only Neymar has a decent number of points (38), the rest are low with Luiz (18) second top for Brazil)
Whereas Columbia have Rodriguez on 70 fantasy points and 7 players between 20 and 29 fantasy points.
So 7 Columbia players have more fantasy points than Brazils second top scoring fantasy player (Luiz).
I predict Columbia to win.
The other game is more difficult as I would have said Germany for definite (despite the fact they play with no centre forward) but now they have had flu that may weaken them near the end of the game so I think this game is very close.
Probably go to penalties and then you have to favour Germany.