The #USOpen slug feast is real: @petra.kvitova is fighting to break back & it's 4-4 in the 3rd set of this QF. Join us on @espn now 📺. (📸 by @narnah) #usopen #petrakvitova #kvitova #tennis #happy #happiness #instatennis #🎾 #❤️ #🇨🇿