There is only one person in Coco Gauff's life that she trusts to give her good fashion advice. The American opened up about her boyfriend, aspiring actor and musician Jalen Sera, being her go-to voice when she needs guidance on her style.Gauff has consistently earned praise from the tennis community for her stylish on-court outfits, especially through her sponsor New Balance's collaboration with luxury fashion brand Miu Miu in 2025. The World No. 3 has also impressed with her off-court fashion, which has earned her the Style Influencer of the Year award at the FN Achievement Awards.Coco Gauff opened up about her style in an interview with Women's Wear Daily ahead of the event. The American revealed that the only person whose fashion advice she trusted was her boyfriend Jalen Sera, sharing that she had asked for his opinion while choosing her outfits for a recent music festival."The only person I take seriously is my boyfriend. He gives good advice. I am going to a music festival, and I was trying on outfits on the phone with him," Gauff said.Gauff also named Rihanna as her biggest fashion icon, praising the singer for her ability to style both feminine and masculine aesthetics with ease."My biggest is probably Rihanna. I like her because she can rock both masculine and super-feminine ’fits. You can see her in a range of aesthetics," she said.The two-time Grand Slam champion made the most of her off-season by spending a lot of quality time with her boyfriend Jalen Sera. The couple have shared glimpses of them enjoying live music at the Camp Flog Gnaw Carnival, touring an art exhibition in Los Angeles, and attending an NBA game with the World No. 3's brothers.Coco Gauff's boyfriend Jalen Sera reacts to her stylish off-season photodumpCoco Gauff - Source: GettyCoco Gauff recently showed off her stylish off-court fashion in a photodump on Instagram. The American also chronicled her off-season adventures, which included customized keychains depicting joyful memories with her boyfriend Jalen Sera."Off szn," Gauff captioned the Instagram post. View this post on Instagram Instagram PostSera shared a loving reaction to the post, referencing the quality time he and Gauff had been spending together."Quality time🩶," Sera commented.Jalen Sera's comment on Gauff's Instagram postOn the tennis front, Coco Gauff has kicked off her pre-season training, joking that she needed to burn off her Thanksgiving calories. The 21-year-old will commence her 2026 season by representing Team USA at the United Cup, teaming up with Taylor Fritz as the defending champions.