Nicholas Hilmy Kyrgios is an Australian professional tennis player. Kyrgios achieved his career-high ATP singles ranking of world No. 13 on 24 October 2016. He has won seven ATP Tour singles titles, including the 2019 and 2022 Washington Open, and reached eleven finals, most notably a major final at the 2022 Wimbledon Championships, and a Masters 1000 final at the 2017 Cincinnati Masters. In doubles, during his professional career, Kyrgios has a career-high ranking of world No. 11, achieved on 7 November 2022, winning a major doubles title at the 2022 Australian Open and reaching the semifinals of the Miami Open, both times partnering with Thanasi Kokkinakis. He has also reached three major singles quarterfinals (at 2014 Wimbledon, upsetting then-world No. 1 Rafael Nadal en route, the 2015 Australian Open and the 2022 US Open, upsetting then-world No. 1 Daniil Medvedev en route).
Kyrgios is only the third player, after Dominik Hrbatý and Lleyton Hewitt, to have beaten each one of the Big Three (Novak Djokovic, Roger Federer, and Rafael Nadal) the first time he played against them. Although Kyrgios has received praise for his perceived entertaining style of play, he is a controversial player whose matches have featured "epic displays of ranting, racquet-wrecking, and trash-talking".
In his junior career, Kyrgios won the singles event at the 2013 Australian Open and the doubles events at the 2012 French Open, 2012 Wimbledon Championships and 2013 Wimbledon Championships.