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 faced criticism from several tennis fans after he took a swipe at Madrid Open's electronic line calling system (Source: Getty) Alexander Zverev's spirited comeback victory against ...

MADRID -- Top seeds Alexander Zverev and Aryna Sabalenka scored comfortable victories in their opening matches at the Madrid Open on Friday. Zverev cruised to a 6-2, 6-2 win over home favorite ...

In a dramatic and highly unusual scene at the Madrid Open, Alexander Zverev found himself at the center of controversy during his match against Spain’s Alejandro Davidovich Fokina. The German ...

MADRID - World number two Alexander Zverev was taken to the limit by Alejandro Davidovich Fokina in a gripping Madrid Open third round battle on April 27, progressing 2-6, 7-6 (7/3), 7-6 (7/0).

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.