I reckon Norway could cause Brazil problems (if they beat Ivory Coast), and Switzerland will probably sneak past Colombia in some boring manner. I also think Congo might be a bigger banana skin than Mexico. Congo will likely sit deep, which we struggle against, whereas Mexico will come at us, toe to toe, which I don't think they are good enough to do.
Dunno I think Mexico will happily play like that on the break against us having seen how effective it can be.
Agree that DR Congo is a banana skin too though, mind I think we'll come through that one.