On Brazil - Argentina match i think that Argentina will win. Argentina didn't play good on last match, but they need to win to qualify for next World Cup and for Brazil is only another match. Waiting to see if Messi could play as good as he plays on Barcelona team.
Brazil played amazing and it was an easy victory for it by 3 goals of difference, Argentina already lost its form and after back to back it will be into huge pressure in next encounter against Colombia, I also was thinking it would get succeed to score a goal there but it was totally failure.
Argentina is awfull lately as they didn't won a single game in WQ and now they are risking that they won't be qualified for the world cup they will be facing a though opponent next match the good thing is they will be playing at home and that could help them to win over Colombia whom also having average results so it could be easier to get a win for Argentina