Taylor Townsend knows a thing or two about making your own rules. In the premiere episode of "Run It Back," the Career Grand Slam-winning athlete sits down with ELLE to reflect on the moments that have shaped her career, from picking up a racket alongside her older sister to making her US Open debut against Serena Williams. Watch as Taylor opens up about becoming a mother at the peak of her career, finding a winning partnership in Katerina Siniakova, and carving out her own path both on and off the court. She also gets candid about her friendship with Naomi Osaka, how motherhood changed her approach to tennis, and the inspiration behind her new athletic clothing line, TT. #TaylorTownsend #USOpen #RunItBack #ELLE #ELLE SHOWS: Phoning It In: youtube.com/playlist?list=PLG8Rnf78qVIHWbeVogGkLDyAV5nKo4f6r Where Is The Lie?: youtube.com/playlist?list=PLG8Rnf78qVIFQ_WaGV68_XGHd4Zwu0WW6 Ask Me Anything: youtube.com/show/VLPLG8Rnf78qVIFtrbuVoFDxXCU735qP7Zo...