Jannik Sinner was recently captured on camera using his phone at the 2025 US Open, with his phone's screen bearing the picture of his rumored girlfriend Laila Hasanovic. Several tennis fans took notice of the moment and subsequently came up with a myriad of reactions.On Saturday, August 30, the day of Sinner's third-round match at the hardcourt Major against Denis Shapovalov, a picture of the reigning No. 1 and defending US Open champion surfaced on X (formerly Twitter). In it, the Italian could be seen using his phone. Interestingly, Danish model and influencer Hasanovic's picture was visible on the four-time Slam winner's phone screen.Jannik Sinner's picture prompted a variety of playful reactions from fans:"Him having his gfs pic as wallpaper... and they say hes not a romantic man," one fan wrote."Good bye Jannik Sinner in his single era, you were bigger than the whole sky💔," commented another."Somewhere in New York, Carlos Alcaraz is silently crying into his pillow," another fan chimed in."From Kygs ex to Schumachers ex our rebound guy💁‍♂️," wrote one, referring to Sinner's ex-girlfriend Anna Kalinskaya, who was previously in a relationship with Nick Kyrgios, and Laila Hasanovic, who formerly dated Mick Schumacher."He’s such a horn dog bruh," added another."One thing about Jannik we'll always learn about his private life although he always says he's a private person lol," weighed in yet another fan.Hasanovic was spotted in Sinner's player box at this year's Wimbledon Championships, where the Italian won the men's singles title. However, so far, the World No. 1 has remained tight-lipped regarding his private life. There are also rumors that Sinner has entered the DMs of SI swimsuit model Brooks Nader.Jannik Sinner secures progress to US Open 4R; will face either Alexander Bublik or Tommy Paul nextJannik Sinner after winning his third-round match against Denis Shapovalov at the 2025 US Open (Source: Getty)An upset seemed on the cards when Denis Shapovalov won the first set of his third-round clash against Jannik Sinner at the 2025 US Open. However, the Italian won the next three sets 6-4, 6-3, 6-3 to keep his title defense at Flushing Meadows alive. Reflecting on the match after its conclusion, Sinner said:"It was a very, very tough match today. I’ve known Denis for quite a while, so I knew that I would have to play at a high level today. I’m very happy that I managed to win. He started off very well. I just tried to stay there mentally."Sinner will lock horns with either No. 23 seed Alexander Bublik or No. 14 seed Tommy Paul next. At the time of writing, the third set of Bublik and Paul's match is ongoing. The Kazakh won the first set 7-6(5), but the American squared things up by winning the second 7-6(4).