South Africa led 8-6 at halftime via a try for winger Sibusio Nkosi but they should have been much further ahead as England showed nothing at all in attack but stayed in range with two Farrell penalties.
"He's going for an examination now [Monday afternoon] and the news probably isn't going to be too good".
The win will come as welcome relief to Jones as he has been under pressure since a poor Six Nations showing and their 2-1 series loss to the same opposition during the June summer tour.
"The most important thing is what we do next", Jones answered.More news: Lowe's set to close 31 Canadian stores, including two in the Sault
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Jones said, "We're not the Springboks".
South Africa were well on top, but Malcolm Marx let England off the hook with a poor throw from a line-out and Farrell levelled expertly from the tee against the run of play before Itoje returned to the fray. "But certainly they played with great aggression, great urgency, great effort and certainly those areas are areas we're able to look at".
Jones replied, "I think that's part of preparing for any game". The action continues on Saturday against New Zealand before clashes against Japan and Australia. "It'll be a proper game of rugby".
"When you get in those arm wrestles, someone's got to give. They're the best team in the world and that's exciting for us but in terms of preparation, the preparation's about getting better and that's the same for every Test match we play". You've got to be in the game and, when you get the opportunity to score points, you've got to be good enough to take them.
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