Yeah, but there is a massive goal differential there. Portugal would have to trounce Ghana and Germany would have to trounce us.
It is currently a 4 goal difference with Portugal. If they beat Ghana 3-0 and we lose 2-0, then we go to another tiebreaker: goals scored. Portugal would have 5 goals scored against our 4. We need to score a goal and hope that Ghana takes one back.