Thanks, as always, for your company on another entertaining day - let's hope for more of the same tomorrow.

If you missed any of the action, my colleague Timothy Abraham has got you covered with his match report from Lord's and keep an eye out for the Test Match Special podcast on BBC Sounds later on.

We'll be back from 10:15 tomorrow morning, with Australia resuming 218 runs ahead. See you then!

South Africa bowler Lungi Ngidi speaking to TMS: "It's in the balance right now. Two wickets in hand. If we can knock those over and maybe chase 225, people are going to get their money's worth.

"I guess that's what a Test Championship final should bring. A lot of guys have put their hands up. It's been really exciting and tough cricket out there.

"We were very disappointed not to get to Australia's total. We were up against a world-class attack. Every mistake you make is a chance to them and I give credit where credit's due. They bowled well.

"When we started bowling we realised there was enough in the wicket to bring it closer. Finding a bit of rhythm was all I was looking to do. If you told me this is the position we'd be in at the end of the day, I'd definitely have taken it."

Australia bowler Mitchell Starc speaking to TMS:

"You bowl good balls, good spells, and you'll be rewarded with a few loose shots over the two days but we've seen some quality bowling.

"There's still enough in the wicket. In England when it's overcast, the ball seems to do a bit more. Everyone is quick to jump on the batters but you've got to notice the good bowling from both sides."

On Pat Cummins: "He does it time and time again. He led from the front before he was captain and now as captain as well. The quality and skills he has in his pocket - I'm thrilled for him to get a bagful. To go past 300 is a special effort."

Australia added to the entertainment with a collapse of their own.

They slumped to 73-7 and were in danger of throwing away their first-innings advantage, only for Alex Carey and Mitchell Starc to add 61 for the eighth wicket.

Sir Alastair Cook
Ex-England captain on BBC Radio 5 Sports Extra

The modern player is far better suited to a target. The clarity it gives a modern player will help.

South Africa are going to have to come out and play a certain way and buy into it. I think if they try and do it in 70 or 80 overs, they won't do it.

Maybe the captain or coach should say ball one, we're going to go for it. In a small chase, one person playing the innings of a lifetime and they get there.

Firdose Moonda
Cricinfo writer on BBC Radio 5 Sports Extra

I don't think it's 50:50. I think it's 65:35 for Australia.

Anything over 200 is really tough. Initially, I thought 140 to be honest. If we edge towards 240, it's not going to happen for South Africa.

What more could you ask for going into day three?!

Image source, CricViz

It's been a Test match for the bowlers so far and the quality we've seen has been a delight to watch.

Kagiso Rabada skittled the Aussies on day one but Pat Cummins got his own back today.

South Africa were trickling towards first-innings parity, only to lose their last five wickets for 12 runs and slumped to 138 all out.

Cummins took 6-28, including his 300th Test wicket, and gave Australia a precious lead of 74.

Vic Marks
Former England spinner on BBC Radio 5 Sports Extra

It's a good day to come to the cricket tomorrow. An old-fashioned treat of Test cricket.

The match is evenly poised but I just favour Australia.

Image source, Reuters

Well, that's the end of another fluctuating, chaotic, unpredictable day.

14 wickets have fallen for the second day in a row but Australia have the upper hand. They lead by 218.

Jonathan Agnew
BBC Chief Cricket Commentator on Test Match Special

He had it. It went straight into his hands and out again.

He couldn't have asked for a nicer catch really.

Starc dropped on 14published at 39.4 overs

39.4 overs

And of course, the one that does carry is dropped.

Marco Jansen puts down a sitter at gully.

Vic Marks
Former England spinner on BBC Radio 5 Sports Extra

I think South Africa's slips have come up, certainly at second slip. They look gobsmacked. The ball refuses to carry.

Starc edges behind... but guess what?

It doesn't carry.

In a low-scoring match, how costly could South Africa's 19 no-balls across both innings be?

Three in this Rabada over alone.

They're playing until 18:06 because of the brief rain delay earlier, so we'll have one more over.

Alex Carey definitely hasn't got any bat on this one...

Lbw given.

Lbw reviewed.

Rinse and repeat.

And the lead passes 200.

Six from Maharaj's over as Australia regain control.

It was all going so well for South Africa.

Carey and Starc have since added 51 for the eighth wicket.