Best Hot Shots Of 2017: @stefankozlov broke out a tweener and a ridiculous overhead winner to take this point at the $75K Challenger in Tempe. Send him some 👏 if you were as amazed as we were watching it! (📽: ATP Challenger Tour) #usta #ustennis #stefankozlov #tempe #challenger #nextgenatp #tennis #protennis #instatennis #instasports