Whilst the opening round of Grand Slam events often involve routine victories for seeded players, there is nothing routine about Australian Nick Kyrgios.Kyrgios advanced to the second round of the Australian Open on Monday, defeating Rogério Dutra Silva 6-1, 6-2, 6-4 to set up a second round meeting with Viktor Troicki.The victory was straightforward, but the match will certainly not be easily forgotten.As shown in the video further down this article, Kyrgios audibly told a fan to "shut the f*** up" whilst preparing to serve in the first set of the match, which he was leading 3-1 at the time.Kyrgios was then issued with a code violation for swearing, but continued to vent his frustrations to the match umpire.Despite turning professional less than five years ago, the world number 17 has already compiled a lengthy catalogue of disciplinary issues. The 22 year-old is on record as saying that he "does not love tennis" and has previously spoken of a preference for basketball.Kyrgios' conduct and appetite for the game has been much questioned in recent years. This was first highlighted when he famously seemed to concede defeat to Richard Gasquet by making little effort to return Gasquet's serves in the final set of their fourth round meeting at Wimbledon in 2015.Monday's match was not the first time that the former Grand Slam quarter-finalist has vented his frustrations at a fan whilst on court either.Back in 2016, Kyrgios was fined $5,000 for "verbal abuse of a spectator" during his defeat in the second round of the Shanghai Masters to Mischa Zverev, in response to a fan questioning his perceived lack of commitment.The fan had called on Kyrgios to show "respect for the game" after Kyrgios appeared to walk off the court mid-way through a point. Upon receiving a code violation for swearing from the match umpire, Kyrgios suggested that the official call an end to the match so he "could go home".The Australian had been roundly booed by the crowd for appearing disinterested during the match. Kyrgios later responded to the criticism by arguing that he "didn't owe the fans anything" and that fans could "just leave" if they were unhappy with his performance. Kyrgios has also been fined numerous times for his use of obscene language whilst on court, including two years ago at the Australian Open, where he was fined $4,000 for swearing during his first round match with Pablo Cerreno Busta.

Kyrgios was also lucky to escape punishment for taking a phone call during a mixed doubles match at the same tournament. Another fine seems likely following Monday's incident.

Kyrgios has made a strong start to the season, highlighted by his recent win in the Brisbane International tournament.

As the highest ranked Australian seed in the draw, local fans will be keen to see him continue this form. However, they, as well as the wider tennis community, are sure to be keeping a close eye on Kyrgios' on-court behaviour in addition to his results.