Two balls later, Lyon had Borthwick caught by a diving Michael Clarke at second slip for four. The captain somehow getting his hand to the ball just above the SCG turf.
Harris returned to end Ben Stokes' cameo of 32 off 16 balls, including two sixes off one Lyon over, and cleaned up the tail as Broad played on to his own stumps and Clarke grasped another good catch at slip to complete the rout and the series whitewash.
"It's just an amazing effort, playing the last two games the way we did," said paceman Peter Siddle who claimed 16 wickets for the series. "It's been a long series, everyone was getting sore and weary, we wanted to get done as soon as we could."
Earlier, Chris Rogers reached his third test century and shared a 109-run partnership with Bailey (46) to help Australia reached 276 in its second innings and set England a nearly-impossible target of 448 run to avoid a series clean sweep.
