Celebrity Serena Williams Stuns in a Flirty LBD at Fellow Tennis Star Novak Djokovic’s Charity Dinner By Olivia Bahou Olivia Bahou Facebook Olivia Solomon is a New York-based writer and editor who covers all things fashion, lifestyle, celebrity, and pop culture. She was previously the Assistant Digital Editor for InStyle, and her work has appeared in many national publications. InStyle's editorial guidelines Updated on September 21, 2016 @ 11:45AM Pin Share Tweet Email Photo: Jacopo Raule/Getty When two tennis stars like Serena Williams and Novak Djokovic unite, they’re a force to be reckoned with. That was certainly the case in Milan, Italy, on Tuesday night, when Williams stepped out for a charity gala benefiting the Novak Djokovic Foundation, slaying the red carpet on her way into the star-studded venue. The 22-time Grand Slam winner showed off her out-of-this-world figure in a strapless velvet LBD with satin detailing on the bodice. She accessorized with black pointy-toe shoes, gorgeous curls, and a fall-appropriate burgundy matte lip. Williams traveled to Milan to support her friend and fellow tennis champion Djokovic, whose foundation helps children in his native country of Serbia with education grants. But the world No. 1 wasn’t the only star she partied with on Tuesday night: Williams snapped a ‘gram with fashion powerhouse Giorgio Armani, who was co-sponsoring the event. “Iconic,” she captioned a smiley picture on Instagram. Serena Williams Slays in a Tiny Bikini on a Tropical Vacation It looks like this champion had one legendary night.