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Coco Gauff is winning on and off the court with boyfriend Jalen Sera. While the tennis star has largely kept her love life out of the spotlight, she hard-launched and confirmed their relationship in 2025 in a sweet campaign video for Bose. In the promo video, the athlete listened to an audio message from Sera in which he called his girlfriend “the absolute coolest person ever” and said, “I love you.” After listening to the recording, Gauff smiled and said, “That’s my boyfriend. And today is actually our two-year anniversary. Aw, he didn’t tell me about that!” Soon after, in June 2025, the couple went Instagram official when Gauff snuck Sera into a roundup of summer photos from their visit to Atlanta, Georgia, and he did the same. But the 2025 French Open champion still values her privacy. “Honestly, it wasn’t something I got to set in stone... some parts of myself I love to share and then some parts I think I just keep to myself,” she told People. “And I think that’s just the beauty of it all, that people still know me and know parts of me, but not everything. So I do feel like my life is a little bit in my hands too.” Ahead, read all about Sera and his relationship with the two-time Grand Slam champion. They go way back. The now-couple’s worlds overlapped at a young age when Gauff’s mother, Candi, worked as Sera’s fourth-grade teacher in Atlanta. Talking about Sera in a 2024 interview with Time, Candi said, “My mom always said, if they’re bad in school, they’re probably bad as adults... He’s always been a smart, nice kid.” The couple has been together since 2023. In the same Time interview, Gauff confirmed that she began dating Sera in 2023. Reflecting on their romance at the time, she said, “This is my first real relationship. To just have someone to talk to who is not involved in tennis at all gives me a fresh perspective.” He is her peace. Following her 2023 US Open win, the tennis star told reporters that her boyfriend helps to calm her nerves when she gets in her head. Gauff then revealed that she called Sera the night before her big match when she started having negative thoughts. According to People, Gauff told reporters, “Last night, I started [to get anxious] a little bit, but honestly, I just called my boyfriend, and I told him let’s talk until it’s time to go to sleep, so we spoke until 1:00 a.m. and then I went to sleep.” He's also her biggest hype man. Sera loves to praise his girlfriend and her accomplishments on social media. When she defeated Qinwen Zheng in May’s Italian Open Semifinal, Sera shared Gauff’s post about the match on his Instagram Story and wrote, “Warrior.” In March, as Gauff attended the 2025 Oscars, her proud boyfriend reposted a photo of the athlete in her glamorous yellow Miu Miu gown on his Instagram Story and wrote, “Regal 💫.” Sera later shared another Story post of Gauff in her Oscar gown and wrote, “THE star...Like come on man.” He's an aspiring artist and actor. In a March 2024 interview, Gauff confirmed that Sera is not a fellow tennis player, but is actually pursuing a career in the arts. “He’s a very nice guy. He’s in school now,” she said at the time. “He’s about to apply for music school. He wants to be an actor, and he plays the guitar.” Sera has posted videos of himself playing the guitar, along with his music inspirations, on his Instagram. He helps Coco deal with losses on the court. In an August 2025 interview with E! News, Gauff talked about how Sera helps support her after both good and bad matches. “Honestly, after a good match, I just talk to my boyfriend, my friends, everyone cause I’m in a good mood,” Gauff said. “When I lose, I would say just my boyfriend 'cause he is the only one that can take me and my mood after a loss.”