Alex Zverev was given a warning for unsportsmanlike conduct after using his phone to take a photo of a disputed ball mark in the middle of his 2-6, 7-6(3), 7-6(0) win over Spain’s Alejandro ...

Following his straight-sets victory over Lithuanian wildcard Vilius Gaubas at the Italian Open, Alexander Zverev raised eyebrows with by questioning the quality of the balls used at the tournament.