'Kokkinakis slept with your girlfriend... sorry to tell you that, mate': Tennis bad boy Nick Kyrgios's extraordinary mid-match sledge to opponent Stan Warwrinka, who is rumoured to be dating 19-year-old player Donna Vekic
- Australian tennis bad boy's sledge picked up by a courtside microphone
- He told Stan Wawrinka: 'Kokkinakis banged your girlfriend'
- Comment is believed to refer to Croatian up-and-comer Donna Vekic
- Wawrinka has been romantically linked with Vekic since divorcing his wife Ilham Vuilloud earlier this year
- Latest episode in a pattern of bad behaviour by Krygios, including calling an umpire 'dirty scum' at Wimbledon
Tennis bad boy Nick Kyrgios is once again in hot water after brutally trash-talking his Swiss opponent during a second-round clash at the Montreal Masters.
In a remark picked up by a courtside microphone, Kyrgios told third-seeded Stan Wawrinka that a teenage Australian player, Thanasi Kokkinakis, slept with his girlfriend.
'Kokkinakis banged your girlfriend,' he said, midway through the second set. 'Sorry to tell you that, mate'.
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Sledging outburst: Tennis bad boy Nick Kyrgios is once again in hot water after telling his opponent Stan Wawrinka that a fellow player slept with his girlfriend, adding: 'Sorry to tell you that, mate'. Pictured right,a fuming Wawrinka casts an icy glare towards Kyrgios as he waits at the net for the Australian after the match
Frosty: Kyrgios and Wawrinka shake hands at the net after the Swiss star retired hurt in the final set
Some wags have compared Vekic to Maria Sharapova, on account of her flowing blonde locks and talent
Wawrinka, the reigning Australian and French Open champion, condemned the remarks in a fiery Twitter spree on Thursday evening.
'So disappointing to see a fellow athlete and colleague be so disrespectful in a way could never even imagine,' Wawrinka fumed.
'To [stoop] so low is not only unacceptable but also beyond belief'.
Kyrgios, 20, is believed to have been referring to 19-year-old Croatian tennis player Donna Vekic.
Vekic has been romantically to Wawrinka, who divorced his wife, Ilham, earlier this year.
In his spray to Stan Wawrinka (left), Kyrgios is believed to have been referring to Donna Vekic (right), 19, a Croatian tennis player whose star is on the rise
Stan Wawrinka condemned the rebellious Australian 20-year-old's low blow in a fiery stream of tweets
And Wawrinka was joined by his coach Magnus Norman, who described the incident as 'really low'
She was also one half of a mixed doubles team with Kokkinakis at the 2014 Australian Open.
Oblivious to the growing controversy outside the court, Kyrgios went on to trump Wawrinka 6-7 (8-10) 6-3 4-0 with the Swiss superstar retiring due to a back injury in the final set.
Asked afterwards why he made the staggering remark, he told a Canadian television station: 'He was getting a bit lippy with me.
'Kind of in the heat of the moment. I don't know. I just said it.'
Nick Kyrgios jokes with fellow Australian Thanasi Kokkinakis, whom he accused of sleeping with Wawrinka's girlfriend, at the Davis Cup World Group between Australia and Kazakhstan in Darwin last month
In Vekic's own words: 'I want to be Donna Vekic, not the next Maria Sharapova, or the next Caroline Wozniacki, even though I look like them a little bit'
It's just the latest controversy surrounding Kyrgios, whose on-court tantrums and misbehaviour has drawn the ire of Australian tennis officials and fans alike.
At Wimbledon in June, he screamed out that an umpire was 'dirty scum'.
A week later, he slammed his racquet into the ground with such force it bounced back up into the crowd.
During the competition's fourth round, he was forced to deny 'tanking' after accusations he did not even try to return serve.
Vekic is one of his closest supporters, taking pride of place in Wawrinka's camp on the tennis circuit
Kokkinakis and Vekic are pictured playing mixed doubles together in last year's Australian Open
When asked afterwards why he made the comment, Kyrgios replied: 'He was getting a bit lippy with me'
But he no doubt had the support of most Australians afterwards when swimming great Dawn Fraser suggested he 'go back to where (his) parents came from'. She later apologised.
Tennis officials were said to be thrilled when another scrappy Australian tennis champion, former world no. 1 Lleyton Hewitt, took him under his wing this week.
Hewitt, famous for screaming 'come on!' on the court, agreed to take on a mentoring role with Kyrgios starting earlier this week.
Hewitt and Kyrgios are also playing doubles together in Montreal.
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