Nick Kyrgios proved at the Australian Open, in front of his local fans, that he is one of tennis' most exciting young prospects - perhaps he is a future world number one. However, at the moment, he is prone to upsetting famous fans.
The 19-year-old inspired his nation at the Melbourne Major with a dream run to the quarter-final, until he was rudely awoken by the resurgent British no.1 Andy Murray with a comprehensive defeat.
It would have been hard to take for the powerful, and sometimes unpredictable, youngster; it appears as though he was in no mood to talk with anybody following the defeat by Murray.
Awkward, yet, amusing footage has emerged of the world no.53's non-meeting with tennis-fan pop-star Niall Horan following his Grand Slam exit.
Walking down a corridor in the stadium looking rather dejected, Kyrgios soon finds himself next to the One Direction singer, Horan, who is surrounded by friends and members of his security team.
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Horan notices the sports star going in the other direction and hesitates as if to make contact. However, unlike most teenagers he bumps into, granted most of them would be girls, Kyrgios carries on walking an doesn't even register the Irish singer. Perhaps One Direction aren't as worldwide famous as they would like to be.
I'm sure the singer will get the opportunity to meet the tennis star in the future. Horan, along with other members of his band, is often spotted at the big tennis events. He appeared at both the ATP World Tour Finals before Christmas and Wimbledon last summer.
Kyrgios may need to hope that Horan doesn't carry a grudge quite like another musician that he has locked horns with in the past year. That's right, there's a bit of beef between the music and tennis world.
Following a breakthrough tournament at Wimbledon in 2014, in which Kyrgios beat Rafael Nadal in round four, the youngster got into a bit of a ruck with Canadian rapper Drake.
Kyrgios had noted how, in one of his matches, listening to Drake's music had failed to inspire him for a great performance. The 'Started from the Bottom' singer then threatened the tennis star: "I also want to meet this guy that says that he lost because he listened to my music," the rapper said.
"I also want to meet that guy and look him in the eye and see exactly who he is as a man and size him up and then chop him right down.
"Nick whatever-his-name-is — 'cause he didn't win, so that's how he's going to be remembered: "Nick whatever-his-name-is."
If you look at the famous friends who visit the current elite stars like Roger Federer, Novak Djokovic and Nadal, maybe it's time that Kyrgios is a little more careful what he says and does in the company of high-profile supporters.
You never quite know when you will need a favour after all...