Jannik Sinner launched a YouTube channel—and Nick Kyrgios has thoughts

Allow him to reintroduce himself: World No. 1 Jannik Sinner is the latest professional tennis player to enter the vlogosphere.

Despite owning an official YouTube channel since last October, Sinner made waves in the social sphere by dropping his first behind-the-scenes vlog of his life on tour last week. While the nearly nine-minute debut doesn't include the extensive supporting cast seen weekly in Daria Kasatkina and Natalia Zabiiako's famous *What the Vlog**?* channel, or the untold story of the lower levels of professional tennis seen on Maria Timofeeva's *Kiss My Ace*, it has a sleek production value all its own as it chronicles the Italian's second straight Australian Open victory.

Fans of the top-ranked star will no doubt be fed by lengthy scenes of Sinner in his hotel room, in the gym and at practice, but also in scenes of him riding around in a "lucky" golf cart, and hauling around the Norman Brooks Challenge Cup trophy he won by routing Alexander Zverev.

He also provides pearls of wisdom in one-on-one interactions with the camera.

"I always say that success is also a way to say thank you to all the people who've helped you achieve this, and the best thing is to celebrate in a nice way with the people who really care, who are here," he says in closing, basking in his third major triumph before jetting off to chow down on a burger, his "favorite part."

"It's amazing because people see only what we do on court, but off-court is what really matters: where you build your life for the future. These days are rare. Winning tournaments, it doesn't matter how big it is, but winning these kind of tournaments are special days."

Sinner's initial entry already boasts 345,000 views, and his channel has racked up nearly 50,000 followers in the three days since his first video was posted.

Read more: Sinner delivers sweet send-off to coach Darren Cahill after Australian Open win

But Sinner's first vlog also quickly captured the attention of one particularly captive member of his audience: Nick Kyrgios, who took it as an opportunity to re-open his continued criticisms of the Italian's doping case.

The Aussie, who returned from a nearly two-year injury hiatus at the Australian Open, has been one of the most vociferous critics of the decision-making that led to Italian being allowed to play despite testing positive twice for the banned substance clostebol last year.

Read more: “Should be gone”: Kyrgios hits out at "No Fault" finding in Sinner anti-doping case

"Can he give us a behind the scenes of what happened a year ago?" Kyrgios wrote in a post on X, formerly Twitter. "Asking for a friend."

The 2022 Wimbledon finalist later doubled down in another post on the platform, adding that he thought Sinner's PR team was working "overtime" with the production.

Sinner's case will be revisited in April in a closed-door hearing at the Court of Arbitration for Sport, as the World Anti-Doping Agency appealed his eligibility and seeks to ban him for at least a year. But before then, Kyrgios' latest jab likely won't elicit any response, video or otherwise, from Sinner, who said at the start of the Australian Open that he would be taking the high road as it relates to any public comments on his case from his peers, both now and in the future.

"I haven't done anything wrong. That's why I'm still here. That's why I'm still playing," he said. "I don't want to respond on what Nick said or what other players say."