If that happens which can only happen in a dream world in my opinion it will not be another big upset but it will the biggest upset of all history of World Cup football.
In the last group match I was saying Cameroon to win against Brazil, I did not believe myself when I said that but we had 1 - 0 win for Cameroon. I understand Brazil was with the B team but still LOL
Today if something happen even close to a draw in the 90 minutes then it will be a big surprise. Most likely Neymar is back means we are going to see the best Brazil squad although there are few injuries. But I will be looking forward to at-least a 2 goal difference win for them.
In the current match, are we going to see a Japan win? They are good at defending and they already have a lead.