knife-edge

"I had five seizures brought on by extreme stress because I was just living on a knife edge all the time," she added.

On this ground 20 years ago, another epic series was on a knife edge.

But South Africa roared back into the contest in the second half of the day as Australia collapsed to 144-8 - a lead of 218 - to leave the match on a knife edge.

"I've never played a golf course as hard. Every shot is on a knife edge."

"It's been on a knife edge as to whether our house will get inundated or not, so there's been quite a bit of anxiety," he told the BBC.