April 28 (Reuters) - Alexander Zverev is convinced there was a defect in the electronic line calling system during his Madrid Open win on Sunday after the German risked a hefty fine by pulling out ...

World No. 2 Alexander Zverev became the latest tennis player to question electronic line calling (ELC) on clay courts during a tight Madrid Open contest against Spain’s Alejandro Davidovich ...

MADRID — Top-seeded Alexander Zverev got a warning from the umpire for taking a photo of a ball mark during the clay-court Madrid Open on Sunday after complaining about electronic line-calling.

Alexander Zverev has voiced strong concerns over the current anti-doping testing protocols in professional tennis, describing the system as invasive and disruptive to players' personal lives.

Alexander Zverev survived a major test from Spaniard Alejandro Davidovich Fokina at the Madrid Open, where he earned a thrilling 2-6 7-6 7-6 third-round win. Facing a pumped-up Davidovich Fokina ...

The ATP has adopted the line calling system for all of its tournaments from this year, and while Zverev said he was a fan of the technology he was shocked by the incident in Madrid. "It's going to ...