An open letter from @serenawilliams to all incredible women who strive for excellence: "It is my hope that my story, and yours, will inspire all young women out there to push for greatness and follow their dreams with steadfast resilience." Read her full story on @portermagazine. #USOpen #SerenaWilliams _ #WomenWhoInspire #Tennis #TennisPlayer #PorterMagazine