Turin-Sana
Russian Daniil Medvedev, the WTA Finals champion, continued his impressive start in the competition, narrowly beating German Alexander Zverev in the red group.
The world number two managed to settle the outcome of the match in his favour, defeating his German opponent in two sets, 6-3, 6-7, 7-6.
And if Poland's Hubert Hurkacz wins today against Italian Matteo Berrettini or Yannick Sener, Medvedev will guarantee his qualification to the semi-finals.