Tennis great Serena Williams has taken to social media to show off her dramatic recent weight loss wearing an ab-baring, two-piece gown, sports bras and tight baby T-shirts. But she is absolutely sizzling in a new share, showing her in the ocean in a tropical, bright yellow bathing suit with little cut-out.

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.

Caleb Luna, assistant professor of feminist studies at the University of California, says having someone like Serena Williams speaking out is "a breakthrough". They say it helps silence the critics of how "weight loss is achieved" who say that "people are taking the easy way out" by using weight loss drugs.