ACAPULCO, MEXICO (AFP) - World No. 3 Alexander Zverev, who was thrown out of the Mexico Open at Acapulco this week after repeatedly smashing his racket against the umpire's chair, was fined US$40,000 (S$54,180) by the ATP on Thursday (Feb 24).

Zverev was fined $20,000 for verbal abuse and $20,000 for unsportsmanlike conduct, the ATP said in a statement.

"This represents the maximum fine per each violation," the ATP said, noting that Zverev also forfeits prize money of $31,570 he would have earned in singles and doubles and all ATP rankings points from the tournament.

"A further review of the incident will now follow per ATP rules," the ATP said.

The 24-year-old German, who won Olympic gold in Tokyo last year, lost his temper after he and doubles partner Marcelo Melo of Brazil were beaten 6-2, 4-6, 10-6 by Britain's Lloyd Glasspool and Harri Heliovaara of Finland.

Zverev, the defending singles champion in Acapulco, smashed his racket three times just below umpire Alessandro Germani's feet before taking his seat and then rising again to verbally abuse the official and smash the chair a final time.

His behaviour was condemned by fellow pros, including Acapulco rival Rafael Nadal of Spain as well as Serbia's Novak Djokovic and Britian's Andy Murray, who were competing this week in Dubai.

Zverev himself posted an apology on his Instagram account, saying his actions were "unacceptable."