Nick Kyrgios has not apologised to Stan Wawrinka over girlfriend sledge, claims French Open champion

Kyrgios was hit with two fines by the ATP and said sorry on Twitter - but not directly to Wawrinka

(Getty Images)

French Open champion Stan Wawrinka says he is yet to receive an apology from Nick Kyrgios for the Australian's incendiary comment during their match last week.

Kyrgios, 20, drew the ire of the tennis world in Montreal after he insulted Wawrinka at the Rogers Cup, saying that another Australian player, Thanasi Kokkinakis, had slept with Wawrinka's girlfriend.

Though Kyrgios later apologised via Twitter for his comments, he was slapped with two separate fines by the ATP who also raised the possibility the Australian could be suspended.

Wawrinka did not hear the comment at the time, only learning later that it had been audible on television. He admitted after on Wednesday that the past week had been difficult.

"For the past few days for sure my head was not really into the tennis," Wawrinka told Sky Sports television after a 3-6 7-6(3) 6-3 win over Croatian teen Borna Coric at the Western & Southern Open in Cincinnati.

"What happened people don't see exactly what the consequences are for everybody so I'm trying to put away.

"Today I'm happy with the way I fight. I was playing really bad tennis but most important is the win."

Stan Wawrinka at the Montreal Masters (GETTY IMAGES)

Wawrinka was then asked if he was happy with the way that Kyrgios, who lost his opening match in Cincinnati, had apologised for the incident.

"He didn't apologise so no, but I prefer not to talk about him, thank you," said Wawrinka.