Rain will come into play G, Manaus is rain galore during this time of year.
I think the US and Ghana will be an auto-fade next game, this is going to be a battle in the park. Pros on the US side, keep things tidy, cons lack of creativity. Pros on Ghana, very physical, cons...very physical. The African teams usually play themselves out of the pitch because they become too physical, that's why if they played a team such as Spain or Argentina they will be headless chickens chasing the ball. Against the US though they have a chance because the US don't possess the ball for a long period of time. There will be a ton of hard nose tackling here as oppose to wonderful skill.
whomever is up 1-0 will sit back and counter because neither team has the killer instinct.