#USTennis is already racking up 🏆 in 2018, with @mackiemacster and Tommy Paul winning the doubles crown at the $50K #ATPChallenger in Playford. Comment with a 🇺🇸 if you’re loving this all-American doubles duo! (📸: @tommypaull) #usta #mackenziemcdonald #tommypaul #playford #tennis #protennis #instatennis #instasports