Entertainment Sports Love All! Tennis Player Sloane Stephens and Soccer Pro Jozy Altidore Are Engaged: 'Forever Yes' "Forever starts now," soccer star Jozy Altidore captioned a Monday photo of himself and pro tennis player Sloane Stephens to announce their engagement By Jen Juneau Jen Juneau Jen Juneau is a News and Movies Staff Writer at PEOPLE. She started at the brand in 2016 and has more than 15 years' professional writing experience. People Editorial Guidelines Published on April 30, 2019 10:24AM EDT Sloane Stephens and Jozy Altidore are headed to the altar! The pro tennis player, 26, and Toronto FC soccer star are engaged, they both announced on Instagram Monday, sharing sweet post-proposal snapshots where Stephens’ new sparkler was clearly visible. “Forever yes ♥️,” Stephens captioned her photo, which showed her laughing while her new fiancé wrapped his arms around her from behind and flashed a huge smile. Altidore’s image featured the couple sitting on a stone staircase, with Stephens’ ring front and center as they both grinned widely for the camera. “Forever starts now ❤️,” he wrote. RELATED GALLERY: Love Is in the Air: All of the Celebrity Engagements of 2019 Stephens and Altidore, 29, have been dating since at least summer 2017, but have known each other since the fifth grade, Stephens told the New York Times in September of that year. The tennis star caught the nation’s attention over that summer when she won the U.S. Open. And she said that her support from Altidore — who also plays for the United States’ national team — played a role in her rise to fame. “I don’t think there’s been a more positive person in my corner that I’ve had,” Stephens told NYT. “When I [suffered a foot injury] I was with him and I would always make fun of myself and he’d make fun of me. But he kept it really light for me, so I was never too sad.” The athletic couple are fairly private but do show their affection for each other on social media from time to time. “Date nights with my lady are 👌🏿👌🏿. Love you ❤️ @sloanestephens,” Altidore captioned his first Instagram snapshot of himself and Stephens: a mirror selfie in November 2017. Sloane Stephens/Instagram He wrote alongside a November 2018 snap of the pair sharing an embrace, “You make everything better. Thank you for an amazing birthday @sloanestephens. So blessed to see another year.” That same month, Stephens posted a photo of the couple laughing on a beach while on vacation in Hawaii, hilariously captioning it, “When they ask if you’re ready to come home yet.”