Copy and paste, Travis Head whacks it through point, etc.

Again, though, it's just a single as Wiaan Mulder sensibly has someone out on the boundary.

A quieter over from Gerald Coetzee but with just over an hour gone, it already looks like South Africa left at least 100 runs out there yesterday.

Many batters made the mistake of getting in and throwing their wickets away. Travis Head and Matt Renshaw have done the first bit...

Good advice, Steven. And timely, as Travis Head does whack one there - but South Africa have put a sweeper out so it just goes for one.

He does punch another one for four through the covers, though...

*Repetitive strain injury

Blimey.

Travis Head is starting to look like the version of him that we saw throughout last winter (sorry for the reminder, England fans).

He hammers Gerald Coetzee through the covers for four, with such power it's like he has a personal vendetta against that ball.

The next is upper cut for four more, and brings up the 50 partnership. They've cruised there.

Wiaan Mulder replaces Kagiso Rabada and in his usual way, immediately hones in on a good line and length and concedes just a single.

Good response from Coetzee, testing Matt Renshaw with a maiden. The last ball nips back in and beats Renshaw's defence, so there is still something out there for the bowlers if they can get it right.

Image source, CricViz

This is every ball from Kagiso Rabada and Marco Jansen in the first 10 overs.

Too short and a bit too wide from South Africa's opening pair to the two left-handers?

This opening session is repeating yesterday's so far.

It looks like a glorious day for batting, as Travis Head plays a stunning cover drive for four off Rabada.

Change of bowling, as Gerald Coetzee replaces Marco Jansen.

Travis Head looks keen to take him on, crashing the second ball of the over for four but then he gets in a bit of a tangle against a shorter one, nearly dragging it on to the stumps.

Ouch.

Matt Renshaw misjudges a bouncer from Kagiso Rabada and is pinned on the shoulder. He shakes it off with a wry smile.

Simon Katich
Former Australia batter on Sky Sports

This has been a very good start from Australia. Exactly what they needed.

Glorious shot from Matt Renshaw, driving Marco Jansen straight down the ground for four.

He's looked very comfortable at the top of the order so far, having scored 190 earlier in the series batting at number five.

That shot takes Australia's deficit under 300.

Better from Rabada, just a single off the over as he plugs away outside Renshaw's off stump.

Image source, Getty Images

Four more!

Travis Head is playing a risky game but it's effective so far. He flashes outside the off stump again and carves Marco Jansen for four, but that one wasn't particularly short or wide. It flies past the fielder diving at point, drawing cries of anguish from Jansen and the slip cordon.

Productive start for Australia here.

Travis Head whacks his first boundary behind point as Rabada strays a little too wide, and the South African quick keeps him on his toes with a sharp bouncer in response.

As I say that, Matt Renshaw takes Jansen for two boundaries.

The first is a little lucky, flying off a leading edge, but the second is a beauty, flicked off the pads towards square leg. Lovely timing.