Alexander Zverev's controversy at the Madrid Open raises questions about electronic line-calling technology's reliability and ...

Alexander Zverev is convinced there was a defect in the electronic line calling system during his Madrid Open win on Sunday ...

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

Grant will play unseeded Blu Baker, who utilized an all-court attack to overwhelm unseeded Tomas Luis of Portugal, 6-4, 6-1, ...