Australia dominate at the SCG

Usman Khawaja made 171 as Australia took control of the 5th and final Ashes test at Sydney. Shaun Marsh is 98 not out with a score of 479-4, a lead of 133 runs. We hear the views of Graeme Swann and Ed Smith talking to Simon Mann with interviews with Usman Khawaja and Jonny Bairstow.