sri lanka are outmatched in the bowling.you should be favourites, your'e playing in home conditions?
sri lanka's bowling attack is toothless. all the batters need to do is see off lasith malinga, there is no one really to threaten on these types of pitches.
australia have 3 pronged pace attack johnson, starc, hazlewood, faulkner, with maxwell/clarke as the 5th bowler
sri lanka have no real wicket takers apart from malinga.
the SCG wicket no longer assists spinners much. it is a pretty flat wicket.