Fourth seed Alexander Zverev began his campaign for a third consecutive title as he took on American wild card Frances Tiafoe in the second round of the Western and Southern Open.
Frances Tiafoe v Alexander Zverev
Replay
Cincinnati
2017R2R2
Fourth seed Alexander Zverev began his campaign for a third consecutive title as he took on American wild card Frances Tiafoe in the second round of the Western and Southern Open.
