Pre-season Spotlight: After reaching the Top 250 for the first time this year, Christian Harrison is working hard to crack the Top 100 and join brother @ryan.harrison92 in the world’s biggest event. Send Christian a 🇺🇸 if you’ll be cheering him on! (📽: @charrison94) #usta #ustennis #christianharrison #tennistraining #tennisdrill #tennis #protennis #instatennis #instasports