The Czech has won eight straight matches at the Masters events.
"I'm a fan of the electronic line calling, but the ball was...like four, five centimeters [out]," Alexander Zverev said.
The 23-year-old is coming up the ranking quickly this year.
"I'm not sure if I will come back," Novak Djokovic said after his loss to Matteo Arnaldi today.
The American has zero points to defend through Roland-Garros.
A handshake like no other...
Munich finalist Ben Shelton is finding his feet on clay—and sharing success with Madrid fans.
