Iran played tough against Argentina but finally gave up a goal in the 2nd minute of extra time to Lionel Messi and lost 1-0. Ghana and Germany played to a 2-2 draw and Nigeria beat Bosnia-Herzegovina 1-0.
The standings after ten days (teams which have clinched moving on to the knockout round are in italics):
Group A: Brazil (4), Mexico (4), Croatia (3), Cameroon (0)
Group B: Netherlands (6), Chile (6), Australia (0), Spain (0),
Group C: Columbia (6), Ivory Coast (3), Japan (1), Greece (1)
Group D: Costa Rica (6), Italy (3), Uruguay (3), England (0)
Group E: France (6), Ecuador (3), Switzerland (3), Honduras (0)
Group F: Argentina (6), Nigeria (4), Iran (1), Bosnia-Herzegovina (0)
Group G: Germany (4), United States (3), Ghana (1), Portugal (0)
Group H: Belgium (3), Russia (1), South Korea (1), Algeria (0)
So Argentina clinches a spot in the knockout round and Nigeria, with a 3 point and a 2 GD lead on Iran, will most likely go with them.
The US is in a position to clinch moving on if they can beat Portugal. Of course that's a really big "if." If they lose to Portugal they'll be faced with the daunting task of beating the German team. A draw with Portugal would give the US a 3 point lead over both Portugal and Ghana with a 2 GD lead over Ghana and a 5 GD lead over Portugal.
So, of the 5 teams that have clinched spots in the round of 16, I chose 3.