@rafaelnadal and @garbimuguruza are ending their incredible years with one more milestone by being named 2017 @itf_tennis World Champions! Send them both a 🇪🇸 for their fantastic seasons! (📸: @mutuamadridopen) #usopen #rafaelnadal #nadal #garbinemuguruza #muguruza #itf #tennis #protennis #instatennis #instasports