Since a healthy relationship—like golf—is all about consistency, Norman married another woman he was having an extramarital affair with in 2010.

After the ceremony, Andrassy was quoted as saying, "I wouldn't bet on this one lasting." But so far, third time's been a charm for the Australian golfer.

Miss Andrassy, 57, who is understood to have heard about the engagement from Miss Evert's ex-husband, the former US Olympic skiing champion Andy Mill, 53, added: "It feels wonderful to me to be free for a while." The former flight attendant said she had been expecting the engagement. "But if that's what they want, then so be it." The engagement was revealed when Miss Evert was asked about a large diamond ring she was wearing at a press conference to launch a tennis centre at Pearl Valley - where Mr Norman was playing in the South African Open."This is an engagement ring, and we were engaged four days ago," she said.

After 25 years of marriage, Greg Norman separated from Laura Andrassy and lost $103 million in the divorce settlement.

Norman went on to marry tennis star Chris Evert (a woman he was purportedly seeing during his relationship with Andrassy), only to divorce Evert 15 months later.

On Thursday, at Wimbledon, she found herself in the same place at the same time as her ex-husband, Greg Norman, who came with his new wife, Karen, on his arm.

Oh, the relief of having the ESPN commentary box to hide in with old friends and fellow ex-players Pam Shriver and Mary-Jo Fernandez.

In 1979, she endeared herself to British audiences by marrying our good-looking player, John Lloyd, and became Chris Evert-Lloyd, one half of a “golden couple”.

The second barrel came off her name eight years later when they divorced, following her affair with the singer Adam Faith.Aged 56, she looks terrific in jeans and a T-shirt, an idealised vision of the all-American middle-aged mother with three teenage sons whom she adores.After four years spent dodging questions about the biggest mistake of her life there’s an unforced smile on her face and a lightness to her, whatever the subject, so long as I avoid mentioning a certain golfer. “I’m in a much better place than I’ve been in the last few years.” Her midlife crisis began when, in 2006, she divorced her husband of 18 years, the Olympic downhill skier Andy Mill, because she had fallen in love with Greg “The Great White Shark” Norman, the former world number one golfer, who also happened to be Mill’s friend and business partner. Chrissie Evert got her man just as, in her tennis heyday, she won 18 Grand Slams, including three Wimbledons (1974, 76 and 81). But sometimes the prize isn’t worth winning, as Evert found in the matrimonial game. “It’s very, very amicable,” she says, about to fly off to Aspen, Colorado, to join her sons, who are staying with their father and stepmother.The focus on winning messes with your head, as Evert is well aware. “I remember aged 14 being so excited that I was made a cheerleader at high school. ’ It had to be all or nothing, and I made the decision to go with the tennis.I stopped in 1989, when I was 34, not because I was tired physically but because after 21 years I was mentally tired of waking up every morning and having to compete, and the whole world knowing I had won or lost.” Pretty, feminine and not prone to tantrums, Evert with her double-handed backhand cut an appealing figure on court. Aged 19, she was engaged to Jimmy Connors, then Wimbledon men’s champion.Whether on screen, or talking to me now about the fashion for grunting — “I was never a grunter, I just breathed” — or the future of the American game after the Williams sisters — “we’ve got to bite our tongues and get better players” — chatting about tennis comes as light relief after the emotional roller-coaster of the last five years.