Mitch Marsh comes to the crease, replacing his elder brother. Australia are in a spot of bother at the moment.
M Morkel to Marsh, OUT! Wicket number 300 for Morne Morkel in Tests! He is absolutely delighted and gets mobbed by his teammates. A very ordinary shot attempted by Shaun Marsh. He did the hard work to survive the initial phase but has thrown away a start. Even Morkel will admit that it's not a wicket-taking delivery. But credit to him for playing on the batsman's patience. He lures Marsh into a shot to a delivery well wide outside off. The southpaw falls into the trap, goes chasing after it and gets a thick outside edge to de Kock. The crowd is ecstatic as the 78-run stand has been broken. Big moment for Morne as he joins the elite club. Australia trail by 161 runs.
M Morkel to Marsh, Extra bounce this time, around off, takes the batsman by surprise, Marsh keeps it out from the shoulder of the bat.
M Morkel to Marsh, Operates from around the wicket and angles in a length ball on middle and off, Marsh defends it off his back foot.
Morne Morkel returns for one more burst before tea.
V Philander to Bancroft, Keeps bowling on a good length just around off, this time Cameron defends it watchfully off his back foot.
V Philander to Bancroft, EDGY FOUR! Identical to the last delivery, once again Bancroft commits himself to play inside the line and this time gets an outside edge. It races through the gap between slips and gully for a boundary. A tick for the bowler and runs for the batsman. 150 up for Australia!
V Philander to Bancroft, Beaten! A length ball just around off, Bancroft tries to play inside the line but it shapes away a little to beat the outside edge.
V Philander to Bancroft, Good length delivery outside off, left alone.
V Philander to Bancroft, The batsman has played that off the front foot and into the ground.
V Philander to Bancroft, On a length outside off, staying a bit low, Cameron plays it down towards point.
Vernon Philander is back into the attack.
K Rabada to Marsh, Makes yet another leave outside the off stump and then signals for something towards his dressing room. Maybe, he wants to change his gloves.
K Rabada to Marsh, Good length delivery outside off, Marsh shoulders arms after covering his stumps.
K Rabada to Marsh, Full and around off, Marsh draws forward and defends it to the off side.
K Rabada to Marsh, Chooses to leave the ball outside his off stump.
K Rabada to Marsh, FOUR! Sublime! A touch overpitched outside off, Marsh gets forward and times his cover drive exceptionally well. The placement is also superb as it races through.
K Rabada to Marsh, Outside off, left alone.
K Maharaj to Marsh, A flick of the wrists this time as Shaun works it through the gap at mid-wicket for a run.
K Maharaj to Marsh, Once again uses his feet to reach the pitch of the delivery and pushes it back to the bowler.
K Maharaj to Marsh, Walks down the track and drives it straight to covers.
K Maharaj to Marsh, Once again it's spinning back in from around off, Marsh works it behind square leg and Philander attacks it from fine leg. No run taken.
K Maharaj to Marsh, Turning back into the batsman from around off, it's defended from the crease.
K Maharaj to Marsh, Shortish and on middle and leg, Marsh turns it off his hips to short fine leg.
K Rabada to Bancroft, Good leave. That was a tempter. Landing on a driving length outside off and straightens a bit after hitting the pitch. Bancroft points his bat skywards and makes the leave.
K Rabada to Bancroft, Slants in a length ball on off, Bancroft gets on the front foot and defends it back to the bowler.
K Rabada to Bancroft, Good length ball on off, Bancroft is firmly behind the line as he defends it down to covers.
K Rabada to Bancroft, This one is angled into the batsman, on a length, Bancroft plays it late and helps it towards mid-wicket.
K Rabada to Bancroft, Around off on a length, Bancroft defends it from the back foot.
K Rabada to Marsh, Shortish and on middle, tapped behind square leg for a run.
K Maharaj to Bancroft, Bancroft has defended it by getting right behind the line of the delivery.
K Maharaj to Marsh, Driven towards the mid on region. They pick up a single.
K Maharaj to Bancroft, Knocks a full ball down to deepish mid on for a run. Maharaj is not happy with the fielding. Has a chat with his skipper and an extra cover fielder has been added.
K Maharaj to Bancroft, FOUR! A fractionally too full from Maharaj, it lands around leg and Bancroft whips it through mid-wicket to fetch yet another boundary in this over.
K Maharaj to Bancroft, Gets on the front foot to a full ball and defends it back.
K Maharaj to Bancroft, Loopy and around off, Bancroft gets down and across to play a cute little paddle sweep. Good connection is made and it races through beating the diving effort near the fence by Bavuma.
K Rabada to Marsh, A stifled appeal for an lbw! A back of a length delivery landing outside off and nipping back sharply into the batsman. Marsh offers no shot and is hit high on his front pad.
K Rabada to Marsh, Rabada keeps it on a length around off, Marsh opens the face of the bat and defends it watchfully.
K Rabada to S Marsh, Too full in length outside off, it's driven through the line and straight to the cover fielder. He misfields a touch but it rolls towards mid off. No chance of a run.
K Rabada to Marsh, Loses his line this time, Rabada. Serves it down the leg side and is lucky that Marsh fails to get any bat behind it.
K Rabada to Marsh, Lands it full and outside off, Marsh gets half forward and gently pushes it through the vacant cover-point region. A nicely judged couple of runs taken.
K Rabada to Marsh, Rabada speeds in from round the wicket and arrows in a fuller length ball on middle and off, Marsh covers the line and keeps it out safely to covers.
K Maharaj to Bancroft, Uppish but safe. A slider on middle, skidding back in, Bancroft fails to control his flick shot and it goes aerially on the leg side. Wide of mid-wicket though.
K Maharaj to Marsh, Brilliant fielding, Bavuma! A flighted full ball outside off has been drilled through the line by Marsh. It has four written all over it but Bavuma at covers makes an outstanding diving stop. It's however not a clean one as the batsmen switch ends.
K Maharaj to Marsh, Slower through the air this time, lands it full and outside off, gets some extra bite and spin, Marsh lunges and defends it with soft hands to covers.
K Maharaj to Bancroft, A nicely tossed up delivery on middle, fuller in length, it's eased down to long on for one.
K Maharaj to Marsh, Lets the ball to spin back into him and nudges it in front of square leg for a run.
K Maharaj to Bancroft, Driven towards the mid on region. The batsmen have run through for a single.
K Rabada to Bancroft, Just taps it down in the gap at covers and retains strike.
K Rabada to C Bancroft, FOUR! Played well. This is a good contest between bat and ball. Rabada overpitches this time, outside off, Bancroft brings his bat down and forces it past mid off for a boundary. 50-run stand comes up!