Watch this Next Gen battle from start to finish from the Miami Open as Greek teenager Stefanos Tsitsipas took on Russia's Daniil Medvedev in the first round at Key Biscayne.
Stefanos Tsitsipas v Daniil Medvedev
Replay
Miami
2018R1R1
Watch this Next Gen battle from start to finish from the Miami Open as Greek teenager Stefanos Tsitsipas took on Russia's Daniil Medvedev in the first round at Key Biscayne.
