Marathon Simona: After a three-hour win during the day, @simonahalep returns at night to defeat V. Williams 6-2, 6-2 in R3 of @couperogers. Give the World No. 1 a 💪🏻 for showing some impressive stamina today! Follow the action on @beinsports. _ #usopenseries #simonahalep #halep #wta #couperogers #tennis #protennis #instatennis #instasports