USA scenarios

Germany plays Ghana Saturday. I will assume Germany wins. Here are the three tables following USA-Portugal on Sunday.

with USA WIN
Germany 6
USA 6
Ghana 0
Portugal 0

with USA DRAW
Germany 6
USA 4
Ghana 0
Portugal 1

with USA LOSS
Germany 6
USA 3
Portugal 3
Ghana 0

A win clinches a berth in the knockout round.
A draw doesn't clinch, but is pretty close because USA has a +5 goal differential over Portugal.

A loss leaves work to do, hoping to best Portugal's fate against Ghana.

In short, win or draw vs Portugal and we're sitting pretty.