Postpublished at 53 mins
South Africa 17-10 British and Irish Lions
The Lions get another penalty in front of the posts after a high tackle on Alun Wyn Jones.
First Test result: South Africa 17-22 British & Irish Lions in Cape Town
Four Dan Biggar penalties and one from Owen Farrell help Lions to victory
Lions trailed world champions 12-3 at half-time before fighting back
Hooker Luke Cowan-Dickie's try at start of second half put Lions on front foot
TV match official confirms Faf de Klerk try but rules out two other scores
Becky Grey and Sarah Rendell
South Africa 17-10 British and Irish Lions
The Lions get another penalty in front of the posts after a high tackle on Alun Wyn Jones.
Faf De Klerk
The first half was a penalty-ridden chess match but suddenly this Test has been blown wide open.
After Pieter-Steph du Toit's impressive break, wing Makazole Mapimpi chips a ball through and the flanker gathers it again before scrum-half Faf de Klerk ends up in the thick of the action and over the tryline.
Unusually, Handre Pollard misses his kick meaning there is still one score in it. Huge 30 minutes coming up.
Chris Jones
BBC rugby union correspondent
And there we were hoping the TMO would have a quiet game...
South Africa 12-10 British and Irish Lions
Pieter-Steph du Toit finds a gap and is suddenly metres from the line. Faf de Klerk is across but the referee blows his whistle again.
Think we're going to have another chat with the TMO.
On-field decision is a try but they're checking to see if Du Toit knocked the ball on.
South Africa 12-10 British and Irish Lions
The Lions are in an excellent position now that the lead is down to two.
They will surely be expecting South Africa to tire given how little gametime the Springboks have had coming into this.
But the hosts still look to be going strong as they attack inside the Lions' half.
Exeter Chiefs react to their hooker Cowan-Dickie scoring the opening try.
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South Africa 12-10 British and Irish Lions
Well. What a start to the second half this has been.
There hasn't even been time to tell you about the new South African front row of Malcolm Marx, Steven Kitshoff and Frans Malherbe.
They all came on at half-time.
South Africa 12-10 British and Irish Lions
South African TMO Marius Jonker says there was not enough evidence that Willie le Roux was not in front of the kicker. So it's not a try!
That is huge for the Lions. Wonder how they feel about that home TMO now.
South Africa 12-10 British and Irish Lions
The referee says his on-field decision is that it is a try, but he wants to check if there was a forward pass between Damian De Allende and Lukhanyo Am. He says that's good.
Am kicked the ball for Willie le Roux to chase so they are checking whether the full-back was behind the kicker.
South Africa 12-10 British and Irish Lions
Willie le Roux is over!
Was he offside when he set off though?
South Africa 12-10 British and Irish Lions
What a decision to go for the corner there instead of kick for goal.
There would have been plenty of naysayers if that had not paid off but the Lions don't need to worry about that now.
Harlequins captain Rachael Burford on Cowan-Dickie's try...
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Luke Cowan-Dickie (Con Biggar)
And the maul is over!
It takes a while for the cogs to get cranking but all of a sudden the Lions gather momentum and Luke Cowan-Dickie taps the ball down on his Lions Test debut.
What an incredible start to the second half for the visitors.
Dan Biggar reduces the lead to two and suddenly it is all to play for. Game ON.
South Africa 12-3 British and Irish Lions
The maul is on!
South Africa 12-3 British and Irish Lions
Quick hands from Dan Biggar gives Stuart Hogg a half-chance, but he cannot take it.
Happily the Lions have an advantage and Dan Biggar kicks to the corner again. They know how much more a try would mean than three points at this stage.
South Africa 12-3 British and Irish Lions
Here we go. The Lions are in South Africa's 22 for the third time this game.
Can they come away with something this time? A few forwards have a go but they're still around 10m out.
South Africa 12-3 British and Irish Lions
We'll get to those changes in a second. The Lions have won a penalty and kick to the corner.
South Africa 12-3 British and Irish Lions
Anyway, half-time snacks consumed and we're off again.
South Africa have made some changes...
HT: South Africa 12-3 British and Irish Lions
Former England star David Flatman on the first-half scrums and an excellent half-time snack. Personally went for two chocolate-coated cookies.
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Billy Whizz's try in Australia 2001. Gave real excitement about what we could achieve.
Andrew, Swindon