Rugby: Scotland romp to stunning win over Australia at Murrayfield

Scotland's Finn Russell, left, gets away from the Australia defence, during the Autumn International rugby union match at Murrayfield Stadium in Edinburgh, Scotland. Photo / AP.

The Wallabies have ended their spring tour in humiliating fashion, slumping to their biggest-ever loss to Scotland at Murrayfield.

The Scots, rejuvenated under coach Gregor Townsend, ran in eight tries in a 53-24 walkover to chalk up a second successive win over Michael Cheika's side following their victory in Sydney in June.

Impressive as the Scots were, their task was made easier thanks to a brain snap from Sekope Kepu that saw him red-carded two minutes before halftime.

With his side leading 12-10 thanks to two quickfire Tevita Kuradrani tries, Kepu was sent from the field after he caught Hamish Watson with a shoulder charge to the head.

French referee Pascal Gauzere immediately referred the incident to television match official Graham Hughes who recommended that a red card be shown.

Kepu becomes only the fifth Wallabies player to be sent from the the field and the first since Kuridrani was dismissed for a lifting tackle against Ireland in 2013.

Scotland immediately made their numerical advantage tell when halfback Ali Price wrong-footed Bernard Foley and darted over from close range with Finn Russell adding the extras to give his side a 17-12 lead at the break.

Kurtley Beale restored Australia's lead after the restart with an excellent dummy that fooled the Scots' defence allowing him to crash over.

However, four tries in a dazzling 15-minute spell sent the home crowd into a frenzy as Scotland, led by fill-in fullback Sean Maitland, a late replacement for Stuart Hogg who was injured in the warm-up.

Maitland grabbed the first after rampaging down the left flank with Jonny Gray and lock Huw Jones crossing before winger Byron McGuigan added to his first-half opener to leave the Wallabies shellshocked.

Retiring former skipper Stephen Moore was given a warm reception from the Murrayfield crowd when he exited the field for the last time just before the hour mark before Lopeti Timani added some respectability to the score with a close-range five-pointer that was converted by Foley.

But the misery continued for Cheika, whose side finished with 13 men after Kurtley Beale was sin-binned, with skipper John Barclay and Stuart McInally going over to bring up the half-century for Scotland.

The Scots' previous biggest win against Australia was 24-15 in 1981.