50 for 50: @samstosur had a night to remember at Arthur Ashe Stadium, defeating the mighty Serena Williams to win the 2011 #USOpen title. Stosur became the second Australian to ever win the US Open, joining Margaret Court, who lifted the trophy three times in the first six years. Send her a 🏆 if you remember this magical moment! #USOpen50 _ #wta #tennis #stosur #samstosur #instatennis #instasports #arthurashestadium #grandslam #flushingmeadows