Referee Angus Gardner - who looks about 13, but is a well esteemed referee - toots his tooter and Paddy Jackson kicks it under way.

Ireland's Call rings out around Ellis Park. Shoulder to shoulder indeed. Stirring stuff.

The South African anthem is given equal welly.

Image source, AP

So, can Ireland do it? How big an achievement would this be for Joe Schmidt's men?

Send us your thoughts using #bbcrugby on twitter.

Image source, PA

It's not been a vintage sporting day for the men in green so far today. The Republic of Ireland have been overpowered by Belgium in Euro 2016.

All your eggs are in the basket of the rugby team now.

You can get reaction from that game here.

Of course, it was a much better story for Northern Ireland earlier in the week - so there have been some happy scenes for those wearing green.

Image source, EPA

Perversely, it's Ireland who ring the changes.

CJ Stander is suspended after his red card-hit on Patrick Lambie last week. So Quinn Roux comes in at lock with Iain Henderson shuffling to flanker.

Rhys Ruddock at flanker, Tadgh Furlong at tight-head, Stuart Olding at centre and Craig Gilroy on the wing are the others to come into the XV - with Jodi Muphy, Mike Ross, Luke Marshall and Keith Earls dropping out.

Image source, EPA

Just the two changes for South Africa, despite their inability to turnover Ireland last weekend with an extra man.

Allister Coetzee is giving his men another bite of the cherry - with the only two absentees through injury.

Elton Jantjies and Pieter-Steph du Toit - who scored off the bench at Newlands - come in at 10 and lock respectively.

Injured pair Patrick Lambie and Lood de Jager drop out.

South Africa: W le Roux; JP Pietersen, L Mapoe, D de Allende, L Mvov; E Jantjies, F de Klerk; T Mtawarira, A Strauss (capt), F Malherbe; E Etzebeth, P du Toit; F Louw, S Kolisi, D Vermeulen.

Replacements: B Mbonambi, T Nyakane, J Redelinghuys, F Mostert, W Whiteley, R Paige, M Steyn, R Combrink.

Ireland: J Payne; A Trimble, R Henshaw, S Olding, C Gilroy; P Jackson, C Murray; J McGrath, R Best (capt), T Furlong; D Toner, Q Roux; I Henderson, R Ruddock, J Heaslip.

Replacements: R Strauss, D Kilcoyne, F Bealham, D Ryan, S Reidy, K Marmion, I Madigan, T O'Halloran.

The term "rugby history" has been bandied around a fair bit today.

England won a series in Australia for the first time ever earlier.

Ireland - already 1-0 up after last week's heroics at Newlands with 14 men - can become the first northern hemisphere team to win a series in South Africa in Johannesburg. 

Should be pretty straightforward, right?

Image source, EPA

We've seen something monumental already today.

Can lightning strike twice in the southern hemisphere?

... we'll be back up at 15:30 BST for South Africa-Ireland II...

Next week's third and final Test will take place at the Allianz Stadium in Sydney and kick off at 11:00 BST. It will be interesting to see if Eddie Jones mixes it up or sticks with the same team and goes for the kill. I do hope it's the latter...

England and Saracens team-mates Owen Farrell and Billy Vunipola are interviewed together on Sky Sports:

Farrell: "It's been a good year. We’ve worked hard for it both at the club and here. Jamie George (Saracens' hooker) is constantly practising that kick – he’s always got a ball in his hands. He's a brilliant footballer. It was tough, Australia kept the ball very well at times. It was very slippy out there. Sometimes it was better to be without the ball."

Vunipola: "I’m lucky I got my head in where it hurts to help the team. We’d rather come out here and smash a team but we knew we’d have to work hard for it. An England team has never done this before for a reason."

England flanker James Haskell on Sky Sports: "Two from two but I won't be satisfied until we go 3-0. It was a massive shift. We spent a lot of time defending. The finishers came on and were cool. Who knew Jamie George could chip kick? It will be hard to take it to 3-0 – there are a lot of battered boys and Australia have a competitive squad."

We will be taking a break in a bit but coming back at you with the second Test between South Africa and Ireland. Ireland, remember, somehow won last week despite playing with 14 men for 60 minutes. South African fans will be frothing at the chops for revenge. 

England head coach Eddie Jones on Sky Sports: "We had to defend and play off scraps. That’s how we executed the game. But we're not going to be satisfied unless we win 3-0. I thought we'd get a bit more out of the set-piece, but with the scrum collapsing all the time it was difficult to get an advantage.

"I thought Chris Robshaw and James Haskell made a six and a half - we’re going to have to change the numbering system. This is a great result for English rugby. It's for the supporters. You have occasions in your life when you're lucky and when you coach good players you're lucky."

Paul Grayson
Ex-England fly-half on BBC Radio 5 live

"It's fantastic for England to get to second in the world. But once you're there, pitch your tent because you're at base camp and you have a massive mountain to climb to get near the All Blacks."

England captain Dylan Hartley: "We’ve still got one more game next week. We know Australia are a formidable team. We’ll enjoy this bit of history but the message is we’ll go again. The key thing from last week was defence – Australia are one of the best in the world with the ball in hand. It was important we got some good shots in. We took the onus on ourselves to defend better. I'd like to thank everyone who tuned in back at home.

What about a whitewash?

"Why not? We’re a team that wants to improve and be number one in the world."

Stirling Mortlock
Former Australia international on BBC Radio 5 live

"A phenomenal performance. It's a historic occasion. Hats off to England. There was one team that turned up to play Test match rugby in these tough conditions. Unbelievable defence. It laid the foundation for this unbelievable Test win."

England flanker Chris Robshaw: "It's been a pretty special week and it was an incredible game today. Last week we were a little bit rusty but this week we were spot on. All the work we did in the week paid off and it showed the character of the team. We want to win 3-nil, so it's straight back to work on Monday."