Serena Williams turned up the heat in a yellow swimsuit. Williams, 43, showed off her bikini body via Instagram on Thursday, August 21, in a neon one-piece while posing in the ocean. The tennis pro struck a pose with her hands on her hips as she gave fans a glimpse of her figure after opening up about losing 31 pounds with GLP-1 medication. Her swimsuit featured a scoop neck, spaghetti straps, a bow that tied over her chest and a small cutout. Williams styled the look with a silk green scarf tied around her neck and round black sunglasses. She made her look even more glamorous with dainty hoop earrings. The Olympian kept her look laid-back by going makeup-free. She parted her blonde hair down the middle and styled her mane in a voluminous ponytail. Serena Williams Reveals 31-Pound Weight Loss From GLP-1 "Melanin mellow-yellow ," Williams captioned the post. Her fans complimented her in the comments section. "Looking great as always, Serena!!" one of her followers wrote, while a second added, "Looking GREAT QUEEN ." A third commented, "Congratulations on the success you had with your weight loss program!!" Courtesy of Serena Williams/Instagram Williams' sexy snap comes moments after she opened up about her weight loss on Thursday. "In particular, after having my second kid, I was never able to be at a healthy weight that I could be at, whether it was my joints or blood sugar levels," she told Today. "It was just always something I suffered with, and a lot of women actually go through this." She added that "no matter" what workouts she did, she "could never go back to where [she] needed to be for my health." "I would walk for hours because they say that's good," she explained. "I literally was playing a professional sport. After my second kid, it just even got harder. So then I was like, 'OK, I have to try something different.'" Serena Williams Recalls 'Very Different Time' in Her Life With Bikini Pic Williams explained that getting on the medication wasn't a "shortcut" to losing weight. "As an athlete and as someone that has done everything, I just couldn't get my weight to where I needed to be at a healthy place. And, believe me, I don't take shortcuts."