Netherlands V.s. Chile
This is just a game for positioning as both the Dutch and Chileans are through to the knockout rounds. The question is who will win the group and who will finish second. (There may be different desires based on the morning matches and where Brazil finishes). The Dutch have an inside track on goal differential, so a draw favors them, but Chile doesn't seem terribly impressed with any opponent and given the Oranje's struggles with Australia, La Roja might push up in an attempt to escape rival Brazil and face either the Croats or Mexico.
Spain V.s. Australia--A match for pride, expect the Aussies to go for the points, and Spain to sleepwalk their way hoping they can sit down and rest for a while.
Brazil has the benefit of facing the already eliminated Cameroon. They have an even bigger benefit of facing a Cameroon squad that looks very eager to get the heck away from each other as soon as possible. If they get a point they move on, if they get a win, they are likely to win the group.
Croatia V.s. Mexico
This one's for all the marbles. It's win or go home for Croatia, while Mexico can benefit from either a win or a draw (win by enough and they might even unseat Brazil at the top of the group, though that would require strong defense from Cameroon...but there's a first time for everything). The only way both teams go through is if Cameroon beats Brazil....I'm sorry, I'm sorry I thought I could write that with a straight face....couldn't make it.