He did use the word 'hopefully' when talking about today's match, so that might imply he's not 100% sure if he plays or not. I think Australia should just rest anyone who's got injury niggles eg. Ponting, Smith, Tait, Haddin/Paine, and then play their best XI in the 2nd warm-up vs SA. They'll have a chance through the tournament to rest guys as well. Definitely the 5th game vs Canada and probably the 4th vs Kenya too could be valuable rest for guys like Watson, Haddin, Tait, Lee and maybe Clarke if his back needs rest.