British number 1 Heather Watson has been knocked out of the Australian Open by the forth seed from Poland Agnieszka Radwanka 6-3 6-1. British hopes are now with Andy Murray and Laura Robson. World number 1 Novak Djokovic was put through his paces by Radek Stepanek, winning three well fought sets 6-4 6-3 7-5. Next on the radar for Novak is American Sam Querrey or Swiss Stanislas Wawrinka.