Four 🇺🇸 men are already through on Day 2 of the Australian Open with impressive first-round wins. Give @samquerrey, @tsandgren7, @deniskudla and Tim Smyczek some 👏 for bringing their A-games today! #usta #ustennis #samquerrey #tennyssandgren #deniskudla #timsmyczek #australianopen #tennis #atp #protennis #instatennis