7.43pm: More high-octane stuff... some thrilling T20Is in South Africa in the past couple of weeks, first the nail-biting England series and now this. Australia look to be ahead of the game in this decider, but de Kock is sure to come flying out of the blocks. Andrew 'Funky' Miller will be here shortly to guide you through the run chase.

"Nortje over Steyn might cost SA the match," mutters Mudhabir.

7.39pm: Australia post 193 for 5 - not as high as it could have been after a lightning-fast start thanks to Finch and Warner's rapid-fire fifties, but a useful total nonetheless, with the pitch getting slower and Australia picking two spinners in Agar and Zampa. Australia's middle order got in a muddle again, with Wade and Marsh both struggling for timing after their promotions, but Smith was quite outrageous at the death, hammering Nortje's last over for 20 to take the target past 190. Shamsi and Ngidi the pick of the bowlers: Shamsi put the brakes on in the middle, while Ngidi was quite brilliant at the death.

20 runs off the final over!

Last ball coming up. Gem of an innings from Smith.