Sir Graham Henry believes the All Blacks are perfectly set up to successfully defend the Webb Ellis Trophy.
The 2011 World Cup-winning All Blacks coach was at Twickenham for the 20-18 semifinal clash and felt the Springboks extending New Zealand all the way to the wire was the best possible preparation for the final against Australia or Argentina.
Henry felt the close call was needed after the big quarter-final win over the French the week before.
"It will be great for next week because they didn't play particularly well but they did the job," Henry told Newstalk ZB sports host Tony Veitch after the game.
"I was concerned because we hadn't played well in the first half, we'd kicked a lot of ball away, we didn't look sharp, our scrum was under a bit of pressure and we had given a lot of penalties away. There's lot to work on but psychologically that's good for next week.
"At the end of the day, we were the better side. We scored two tries to none. The Springboks never looked like scoring tries. It was just that we kept them in the game by giving away penalties which was a bit irritating.
"They will be a bit disappointed about how they played but they will be delighted they are in the final and they will play well next week, there's no doubt about it.