Training Thursday: @djokernole is getting healthy once more and we couldn't be more excited! The former world #1 has his eyes set on 2018, with big plans to get back on 🔝! Send the Serbian a 🇷🇸 if you're pumped for his return to the court! (🎥 via Djokovic) #atp #tennis #sports #workout #tennistraining #novakdjokovic #trainingthursday #instaworkout #motivation