Ben Shelton is competing in the semifinals of the BMW Open in MunichThe tennis star, 22, was victorious on Saturday, April 19, as his girlfriend Trinity Rodman watched from the players' boxRodman and Shelton went public with their relationship on Instagram last month Trinity Rodman is supporting her boyfriend! On Saturday, April 19, the soccer player, 22, made her players' box debut as she watched her beau Ben Shelton play in the semifinals of the BMW Open in Munich. The occasion marked the first time Rodman was spotted cheering on Shelton, 22, in the players' box. She attended the sports event wearing blue jeans and a simple black tee, which she paired with oversized sunglasses. At times, the soccer star rocked a green baseball cap to shield the sun from her eyes. Rodman's look was completed by accessorizing with a layered gold necklace, bracelets, and wearing her hair in a slick back bun. The PEOPLE App is now available in the Apple App Store! Download it now for the most binge-worthy celeb content, exclusive video clips, astrology updates and more! Footage from the tournament shared on Instagram showed Rodman sitting besides her boyfriend’s father and coach Bryan Shelton, 55, during the match. In one video, Bryan looked in her direction with a smile as they both clapped. Rodman proved to be a good luck charm for Shelton as the tennis player was victorious in his match against Francisco Cerundolo. He scored 2-6, 7-6(7), 6-4 over Cerundolo, and proceeded to the final, per ATP Tour. Rodman was spotted in her boyfriend's box again on Sunday, April 20, with Bryan. She paired a light blue cropped tank top with denim bottoms and left her straightened brown hair down. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories. The outings come after the couple made their relationship Instagram official on March 17, when Shelton posted a selfie of him and Rodman in an elevator. Rodman had her arm around Shelton's neck as she kissed him on the cheek in the photo. "I been focused, but I’m steady climbin’, I’m nowhere near my peak," Shelton captioned the post, which also included a snap of him with his dad and a friend outside a parked private jet. Trinity, who is the daughter of NBA icon Dennis Rodman, responded in the comment section, "Shooters shoot I guess 🤭👀." She then posted a sweet photo on Instagram of them looking at each other on March 27. Shelton’s face was blocked in the snap by his green baseball cap, but he was tagged. Rodman, meanwhile, could be seen gazing lovingly at him as she leaned against his chest. "Dibs 🤭," she wrote in the caption. "Whoever that is he won," Shelton flirted back in the comments. Rodman previously opened up about making their relationship public in a video shared by ESPN. When asked about the response, she said with a laugh, "I mean, I'm just another person in a relationship and people know about it." She continued, "So yeah, I'm obviously very happy and hopefully some of the world's happy. It's in the public eye, so I can't really do much about that." The National Women’s Soccer League recently revealed that Rodman would be taking an indefinite break from the Washington Spirit due to back issues, according to the Associated Press. Rodman, who also plays for the U.S. national team, won a gold medal at the Paris Olympics last summer.