Wozniacki and McIlroy
Caroline Wozniacki and Rory McIlroyReuters

For the first time since her breakup with golfer Rory McIlroy, tennis star Caroline Wozniacki has opened about her ex-fiancé and how he ended their relationship over a phone call.

Wozniacki was in a relationship with McIlroy for over three years, and the couple was to exchange their vows this November. However, they split in May - just months after McIlroy proposed the Dane in Sydney on New Year's Eve with a $212,000 ring - with the Northern Irishman claiming that he was not ready for marriage.

Wozniacki admitted of being shocked with the way McIlroy ended their relationship over a 10-minute long phone call, and added that she is yet to see him since the breakup.

"I was shocked. I thought at least it would be face to face or something but there was nothing. It was a phone call and I didn't hear from him again," Wozniacki told at the 'In Depth with Graham Bensinger' show.

"It was very hard because he made it very public from the start. He put out a press release and all of that so it just got put in my face."

Wozniacki recently got back to the top 10 rankings after she reached the US Open final. The Dane was defeated by best friend Serena Williams in straight sets in the final at the Flushing Meadows.

The 24-year-old admitted that she is looking for a relationship but with one condition - he should be taller than the 5ft 8in McIlroy. 

"I would like a taller guy so I can wear high heels. I'm pretty strict with my box ticking," she took a dig at McIlroy. "I look for someone who is honest, fun to be around and doesn't take himself too seriously."

Wozniacki also stated that tennis is her focus now, and she has moved on from the past.

"That's a chapter in my life, I've learnt a lot from it," she said. "I believe you never get put through things you can't handle. So I'm definitely on the other side now and I've moved on."

However, Wozniacki never talks ill about her ex-fiance despite whatever she may have gone through, according to Williams.

"I was like, 'How can you be so nice?'," Williams said. "She said, 'I could never hate him. He's been a big part of my life and even if I wanted to I couldn't hate him'. "