Jannik Sinner’s girlfriend, Laila Hasanovic, shared new Christmas-themed photos from her latest campaign for Tommy Hilfiger. The couple has been in a relationship since the middle of 2025 and are often spotted together.Sinner wrapped up his season in Turin, missing out on the Year-End No. 1 trophy by a whisker. However, he still claimed the honors at the ATP Finals by defeating Carlos Alcaraz in straight sets in the final.Hasanovic donned a black dress for Tommy Hilfiger's latest Christmas-themed campaign. Here are some photos shared by her via Instagram: View this post on Instagram Instagram PostJannik Sinner first spoke publicly about his relationship with Laila Hasanovic after winning the Vienna Open. The Danish model has since been seen supporting him at the ATP Finals, and the couple was even spotted together at the Abu Dhabi Grand Prix last week.Sinner edged past Alexander Zverev in a tight final to claim the title in Vienna this year. He reflected on his performance and thanked Hasanovic and his team for standing by him throughout the tournament."It was such a difficult start in this final for me. I went a break down, had some chances in the first set but couldn't use them. Zverev was serving very well, but I just tried to stick there mentally and play my best tennis when it came. To everyone here, my family, my girlfriend, my friends, and my whole team watching from home, thank you so much for your support," Jannik Sinner said"The best tennis players in the world all have wives and children" - Jannik Sinner opens up about the challenge of balancing life on and off the courtSinner and Hasanovic at the F1 Abu Dhabi Grand Prix 2025 - Source: GettyJannik Sinner has raised the bar for men's tennis in the last few years. Apart from defending his title in Melbourne, he also captured his first trophy at the Wimbledon Championships in 2025.During an interview with Vanity Fair's Federico Rocca in 2024, Sinner spoke about finding balance between his personal life and his career."Of course, it's not easy," he said of having a career and being in a relationship. "I travel a lot and during tournaments. I'm very focused. But. I think it's a wonderful thing when you find the right love like everyone else," Jannik Sinner saidHe pointed out that many great champions have been married and even had children during their peak years."And then, if you think about it, the best tennis players in the world all have wives and children." Sinner said in the same chat. "I've never been to a nightclub. I don't like to stay up late. I prefer playing cards with a friend," he addedSinner will have the chance to win his third consecutive Australian Open title next year. He is expected to be the second seed and will face tough competition from Carlos Alcaraz, Novak Djokovic, and Alexander Zverev in Melbourne.