The Proteas were touted as dark horses leading up to the Australian flagship showpiece and have shown why with a fearsome pace attack and batsmen in form.
Ahead of other Group 2 matches later Wednesday, they topped the table with two wins from three matches, including a win over India. South Africa’s third game was washed out.
Pakistan, on the other hand, is fifth and their fate at the World Cup will be sealed if South Africa beat them on Thursday at the Sydney Cricket Ground.
Pakistan’s acclaimed opening pair, Babar Azam and Mohammad Rizwan, have failed to shoot at the World Cup in three games and are under pressure to find form quickly.
“I think it’s an area to exploit,” said middle-order batsman Miller.
“This game is all about confidence and they probably didn’t perform as they wanted.
“But they are world-class players and we expect them to come out and bring their A-game and be ready for the challenge.”
Pakistani bowler Naseem Shah denied that his side is still dwelling on their painful opening defeat to India.
Pakistan was defeated on the last ball by their arch-rivals and followed that with a shocking defeat to Zimbabwe before beating the Netherlands.
He was told by reporters that Pakistan has failed to mentally recover from defeat in India, and fast bowler Naseem replied: “No, I don’t think so, because everyone is professional and everyone knows themselves.
“We lost against India, but I don’t think anyone thinks about the game in India, because as a professional you can’t think about the past when you lose, and above all, you can’t think that.”
Miller took an unbeaten half-century in a nervous five-wicket victory over India, underscoring South Africa’s title references and their resilience.
“I think we find a lot of ways to win,” he said.
“We’ve been doing it for a while now. I’d say we probably got into some tricky situations over the past year and managed to get over the line.
“I think the continuity of the squad over time, guys have managed to find their roles and if one guy doesn’t do well, another guy picks up the slack.”