Nick Kyrgios has taken to social media to share a cryptic message following Jannik Sinner's Wimbledon triumph on Sunday.
The world No 1 defeated Carlos Alcaraz 4-6, 6-4, 6-4, 6-4 to secure his first title at the All England Club following a sublime performance on Centre Court.
Sinner's victory comes after he'd received a doping ban earlier in the year. The tennis star was suspended for three months after striking an agreement with the World Anti-Doping Agency.
The Italian always denied any wrongdoing but was banned nonetheless after he'd tested positive for Clostebol on 10 March 2024 during the Indian Wells tournament.
Nick Kyrgios has taken to social media to share a cryptic message following Jannik Sinner's Wimbledon triumph on Sunday
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Sinner failed a second test eight days later.
The tennis star claimed his fitness trainer had purchased an over-the-counter spray in Italy containing the banned substance. According to his defence, the trainer gave this spray to Sinner's physiotherapist to treat a cut on their finger.
The physiotherapist then allegedly transferred the substance to Sinner whilst providing daily treatment without wearing gloves.
Sinner maintained he had no knowledge of the situation.
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Kyrgios has, however, never really let the incident slide.
And the Australian has taken to X to tweet out a single asterisk, seemingly suggesting that Sinner's triumph is tarnished.
Meanwhile, speaking after his victory, Sinner paid tribute to his team and hailed Alcaraz for putting up a strong fight.
"I'd like to start with Carlos. Again, an amazing tournament from you but thank you for the player you are. It's so difficult to play against you," he stated.
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— Nicholas Kyrgios (@NickKyrgios) July 13, 2025
"On the court we just try to build it up. Keep going and keep pushing, you are going to hold this trophy many times - you already have two!
"It's so special for me. Seeing my parents, brother, my whole team here, it's amazing.
"Emotionally, I had a very tough loss in Paris, but at the end of the day it doesn't matter how you win or lose.
"You have to understand what you did wrong, accept the loss and keep working.
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"I'm so grateful I'm healthy and have great people around me.
"Any moment can change the match, so I'm so happy I held my nerve.
"Me and my team said before the match we never thought I would be here when I was young. It was a dream of the dream because it was so far away.
"I'm living my dream."
Jannik Sinner was too strong for Carlos Alcaraz in Sunday's Wimbledon final
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Sinner will now set his sights on winning the US Open for a second year in a row this September.
Should he do that, he'll rise to five Grand Slam titles at the age of 23 - a feat that would also draw him level with Alcaraz.