Serena Williams showed off her slim figure in a bold swimsuit after revealing she’s been using a weight-loss medication. The athlete, 43, sported a bright yellow one-piece as she posed for a series of snaps Thursday. “melanin mellow-yellow ,” she captioned the Instagram carousel — and fans were quick to hype her up in the comments.

Serena Williams has been open about her personal fitness and weight loss journey, especially since becoming a mother of two. Here's everything Serena Williams has said about her weight loss journey.

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 st