Alexander Zverev has been kicked out of the ATP 500 tournament in Acapulco, Mexico, for "unsportsmanlike conduct" after his doubles match on Wednesday (NZ time).
Zverev, partnering Brazilian tennis player Marcelo Melo in doubles, came perilously close to hitting umpire Alessandro Germani when he repeatedly assaulted the umpire's chair with his racquet, after a 6-2 4-6 (10-6) defeat to the British-Finn pair of Lloyd Glasspool and Harri Heliovaara.
"Due to unsportsmanlike conduct at the conclusion of his doubles match on [Wednesday] night, Alexander Zverev has been withdrawn from the tournament in Acapulco," the ATP said.
Zverev said he regretted his behaviour and apologised for the incident.
"It is difficult to put into words how much I regret my behavior during and after the doubles match yesterday," Zverev said.
"I have privately apologised to the chair umpire because my outburst towards him was wrong and unacceptable, and I am only disappointed in myself.
"It just should not have happened and there is no excuse. I would also like to apologise to my fans, the tournament, and the sport that I love."
After shaking hands with the opponents, the 24-year-old Zverev, ranked No. 3 in singles, approached the umpire's chair and hit it repeatedly, before heading towards his courtside seat, upset over a line call during the match earlier.
He approached the chair a second time and once again hit it while shouting expletives.
"As you know, I leave everything on the court. Yesterday, I left too much. I am going to take the coming days to reflect - on my actions and how I can ensure that it will not happen again," Zverev added. "I am sorry for letting you down."
The former US Open finalist completed a first-round win over American Jenson Brooksby in the Abierto Mexicano tournament at 4:55 am local time on Tuesday, the latest ever finish for a professional tennis match.
Last year's winner, Zverev was scheduled to meet fellow German Peter Gojowczyk, who will now get a walkover to advance to the quarter-finals.
Zverev's angry outburst could earn him more sanctions from the men's governing body.
In 2019, after an initial fine of US$113,000 (NZ$166,400), Australian Nick Kyrgios was handed a suspended ban of 16 weeks and an additional fine of US$25,000 (NZ$36,840) for "aggravated behaviour" by the ATP following an internal investigation.
In October last year, the ATP also launched an internal investigation into allegations of domestic abuse against Zverev, by his ex-girlfriend Olga Sharypova.
Reuters.