Top-seeded Alexander Zverev got a warning from the umpire for taking a photo of a ball mark during the clay-court Madrid Open ...

Alex Zverev was given a warning for unsportsmanlike conduct after using his phone to take a photo of a disputed ball mark in ...

Sabalenka disagreed with a ball mark on the Stuttgart clay, a situation that electronic line calling would make even more ...

Tennis balls are made up of a hollow rubber core and a wool or nylon shell known as the nap. In tournaments they must be white or yellow in colour. The rubber core is usually filled with pressurised ...

Welcome back to the Monday Tennis Briefing, where will explain the ... the umpire will go to inspect a ball mark. Bley confirmed the line judge’s call, which meant the players sat down for ...