How do you assume Australia as a tough opponent when they started the world cup with two losses, once against India and one against South Africa, not even the die hard fans of Australia are not giving them any chance to reach the semi finals.
India and New Zealand are the favorites coming into this world cup and they are proving their worth and the next match between these two teams will be the interesting match up everyone is waiting to see.
I would be cautious before writing off Australia. Remember that they always perform well in ICC tournaments. Today's match is going to be important. Remember that Australia managed to win their last match. A win against Pakistan today will give them good momentum. And after this they have the relatively easy match against the Netherlands. There is still a good chance that Australia can qualify for the semi-finals, but then there is no room for complacency. They need to boost their net run rate as well, as it is a bit low (-0.734).