New Delhi: Australian rising young tennis sensation Nick Kyrgios could be suspended for an "insulting remark" made to Swiss ace Stanislas Wawrinka.
According to report in the BBC, the ATP has served Kyrgios with a 'Notice of Investigation' which may see him suspended from its events.
The 20-year-old was fined £6,400 on Thursday for his deregotary remarks on Stan regarding the latter's girlfriend in a Rogers Cup match in Montreal.
Although the Aussie youngster apologised for his actions, An ATP statement said it had begun "a process to determine if his actions also constitute a violation of the Player Major Offence provisions set forth under 'Aggravated Behaviour' or 'Conduct Contrary to the Integrity of the Game'.
"The investigation opens up the possibility of further penalties which could include monetary fines and/or suspension from ATP events."
On Friday, Kyrgios faced John Isner in the third round in Montreal, Canada and was booed as he came on to court and on leaving as he lost 7-5 6-3.
Earlier, on Thursday Kyrgios had taken his bad boy antics to a new level, after delivering a stunning on-court sledge to Stan Wawrinka. Kyrgios told the two-time Grand Slam champion that fellow Australian player Thanasi Kokkinakis banged his girlfriend.
Later on Kyrgios' brother Christos Kyrgios claimed that Nick and Stan had a bust-up in the locker room. Christos also gave an interview to Australian media which was cut due to further deregotary comments.