England Sevens progress to quarter-finals in Singapore
England Sevens star Dan Bibby hailed his side's battling spirit as they secured their place in the quarter-finals of the HSBC World Rugby Sevens Series in Singapore.
Bibby was the first to cross the whitewash before Ruaridh McConnochie dotted down before the break.
Dan Norton scored England's third with Bibby's conversion taking the game to 19-5, with McConnochie, Tom Bowen and Callum Sirker - scoring his first senior try - wrapping up the win.
Charlie Hayter got England off to a blistering start against South Africa in their final pool match with a try after only 20 seconds, before Werner Kok and Branco du Preez's conversion gave the Springboks a 7-5 lead at the break.
Bowen crossed to restore England's lead in the second half, before Norton converted a chip and chase to extend it further with Bibby making no mistake from the tee.
South Africa's Tim Agaba went over in the dying seconds but England were able to hold on for a 17-12 victory.
They will play last year's Singapore winners Kenya in the knockout stages on Sunday.
"It's an amazing feeling to get a win over the Springboks," said Bibby.
"It was important for us to start building as we were rusty this morning against France. It was a must win game if we were to top the pool.
"The boys worked so hard, I'm so proud of them - so proud of the way they bounced back from this morning."