Nick Kyrgios of Australia plays in a doubles match on Day Three of the 2014 US Open.
Things aren't so rosy anymore.
Nick Kyrgios of Australia serves against Mikhail Youzhny of Russia during his men's singles first round match on Day One of the 2014 US Open.
Marked man - Nick Kyrgios is now a dangerous opponent.
15 year old Nick Kyrgios playing in his first round juniors match during the 2011 Australian Open in Melbourne.
Australia's Nick Kyrgios listens to music before the start of his men's singles quarter-final match against Canada's Milos Raonic on day nine of the 2014 Wimbledon.
Nick Kyrgios with partner Andrew Harris in his first round junior doubles match at the 2011 Australian Open in Melbourne.
16 year old Nicholas Kyrgios reacts during his Australian Open 2012 quarterfinal match.
Nick Kyrgios competes against Anton Desyatnik of Russia during Day Eight of the 2012 US Open.
Nick Kyrgios in his junior boys' final match against during the 2013 Australian Open.
Nick Kyrgios kisses his trophy after winning the boys singles final at the 2013 Australian Open.
Nick Kyrgios of Australia plays a forehand during the Boys' Singles third round match at Wimbledon last year.
Nick Kyrgios in action during the 2013 Davis Cup match between Poland and Australia.
France's Gael Monfils (L) shakes hands with Australia's Nick Kyrgios (R) after their Davis Cup first round tennis match France vs Australia, February 2014.
Nick Kyrgios during his men's singles match against Richard Gasquet of France at Wimbledon this week.
Nick Kyrgios celebrates winning a point against Richard Gasquet of France during their men's singles match in Wimbledon this week.
Nick Kyrgios reacts to winning his match against Richard Gasquet of France in Wimbledon this week.
Richard Gasquet of France congratulates Nick Kyrgios after being defeated by him in their men's singles match at Wimbledon this week.
Australia's Nick Kyrgios (left) and Australia's Thanasi Kokkinakis celebrate winning the Boy's Doubles Final at Wimbledon 2013.
Australia's Nick Kyrgios, left, and Australia's Thanasi Kokkinakis celebrate with the trophy after winning the Boy's Doubles Final during day thirteen of the Wimbledon Championships 2013.
Nick Kyrgios (R) and Andrew Harris of Australia pose after winning the boys double final at the 2012 French Open.