Three weeks after the incident, Zverev was spared by the ATP when he was only fined and given an eight-week suspension.
Zverev has 19 ATP titles but has not reached the final of the BNP Paribas Open.
`It was the worst moment of my career,` Zverev said at a press conference on March 9.
Zverev reacted violently to referee Alessandro Germani’s decision when he lost the tie-break series of the doubles match at the ATP 500 Mexican Open on February 23.
Zverev was criticized by many people in the tennis industry.
In addition to the fine, Zverev was also investigated by the ATP for allegedly assaulting his ex-girlfriend Sharypova – a close friend of Daniil Medvedev’s wife.
`I’m learning meditation to control my emotions,` Zverev added.
Zverev is the third seed at the BNP Paribas Open, a tournament without second seed Novak Djokovic.