Tennis player Maria Sakkari, who's ranked ninth in world rankings, took to Twitter to state that Hungarian player Amarissa Tóth should be banned, after erasing a ball mark during her Hungarian Open match against China's Zhang Shuai. "Zhang's the nicest player on...tour," added Sakkari. "I'm...shook by [the] disrespect," tweeted Australian tennis player Ellen Perez, while discussing Tóth's gesture.