Carlos Alcaraz amused US Open fans at the Arthur Ashe Stadium with a joke about Jannik Sinner following his triumph in New York on Sunday night.
The 22-year-old won 6-2, 3-6, 6-1, 6-4 to claim the sixth Grand Slam title of his career, while also getting revenge on his rival following his defeat at Wimbledon earlier this summer.
Alcaraz and Sinner have now met in the last three Grand Slam finals.
Their rivalry is evolving with each passing major, with the duo looking set to dominate the biggest tournaments for many years to come.
Carlos Alcaraz was sensational on Sunday as he beat Jannik Sinner to win the US Open
| REUTERSAnd Alcaraz amused fans inside the Arthur Ashe Stadium by joking that he sees more of Sinner than he does his own family.
The tennis star, who will become the new world No 1 on Monday, said: "It's unbelievable what Jannik has done throughout the whole season, a great level in every tournament.
"I see you more than my family!
"It's great to share the court, locker room and everything with you, watching you improve.
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"This tournament is incredible and it's a privilege to be a part of it.
"I feel at home here and feel the energy and love. You (the fans) make everything easy."
Alcaraz also thanked his team for their support and hard work behind the scenes.
He continued: "My team, my family - I'm lucky to have you guys. You work hard to make me better and not just professionally but personally too.
King Carlos 👑
— US Open Tennis (@usopen) September 7, 2025
The Spaniard defeats Sinner in four sets to claim his second US Open trophy! pic.twitter.com/C2jBm7F178
"Every achievement I have is thanks to you. This one is also yours.
"I'm lucky to have my brother, my uncle and father - my little brother and mother are watching at home. Thank you so much."
Sinner, meanwhile, sent a classy message to Alcaraz while acknowledging he'd been beaten by the better player on the day.
"Congrats to Carlos and your whole team. There is so much hard work behind this win today and you did better than me. Congrats, this is a great moment," he said.
"To my team, thank you for supporting and understanding me. For working hard. We all know how much dedication we put into being on this stage today.
"It has been an incredible season - a lot of big stages and matches throughout the season. I am super happy to share this moment with you and my family and all the people I love.
"I tried my best today. I couldn't do anymore. Thank you for the support.
"I would like to thank everyone who makes this place very special. Behind the scenes, I know how much work you put in. This has been an incredible run. And thank you to the ball kids.
Carlos Alcaraz was dominant, with the Spaniard now the new world No 1 following his US Open triumph
|REUTERS
"I can't wait to come back next year. You guys [the crowd] are amazing. Seeing a packed stadium in the early matches, you make this place so special. I am very happy to stand here on the court today - we all try to make it the best show.
"See you guys next year."