Tennis star Serena Williams attends the launch of her Berlei Bras News Photo - Getty Images

Tennis star Serena Williams attends the launch of her Berlei Bras Line at Macy's Herald Square on August 25, 2016 in New York City. Get premium, high resolution news photos at Getty Images

Serena Williams showcases dance moves while sporting lingerie in Melbourne

Serena Williams shows off abs, Berlei sports bra

5,821 Serena Williams Fashion Stock Photos, High-Res Pictures, and Images - Getty Images

Tennis star Serena Williams attends the launch of her Berlei Bras News Photo - Getty Images

16 Berlei Bras Line Stock Photos, High-Res Pictures, and Images - Getty Images

Serena Williams: 'I didn't retire, I just didn't know how I would come back

Serena Williams' career in photos

Tennis Player Serena Williams attends the Berlei Sports Bras Launch News Photo - Getty Images

Serena Williams on Confidence, Sports Bras, and Body Image - Serena Williams Launches Berlei at Macy's

14,694 Models In Bras Stock Photos, High-Res Pictures, and Images - Getty Images

3,245 Serena Williams Miami Open Photos & High Res Pictures - Getty Images

Serena Williams - This Berlei SF3 High Impact Sports bra is one of my absolute favorites! It gives great support and is comfortable to wear on and off the court. Love this