Tennis player David Nalbandian has been fined the maximum penalty of 10,000 euros (£8,000) for kicking an advertising hoarding into a line judge's leg at a tournament final on Sunday.
The ATP (Association of Tennis Professionals) said the Argentinian will also forfeit his £36,500 in prize money after he lashed out at Queen's, injuring official Andrew McDougall.
An ATP spokesman said: "Nalbandian automatically forfeited his prize money and ranking points due to his conduct default.
"A maximum 10,000 euro (£8,000) fine also was issued onsite by the ATP Supervisor for unsportsmanlike conduct."
The news came as police confirmed they were investigating a complaint of alleged assault against Nalbandian.
A Scotland Yard spokesman said: "We are aware of an incident at the Aegon Championships on June 17.
"A complaint has been made and the Metropolitan Police Service is now investigating. The allegation is of assault."
Mr McDougall was left with a bloodied shin following the outburst.
Nalbandian won the first set of the final but lost his temper in the second set after being broken by Croatian opponent Marin Cilic.
After missing a lunging forehand, Nalbandian kicked an advertising hoarding in front of the chair of the line judge. The hoarding flew off its hinges and struck Mr McDougall in the shin, causing an inch-long gash from which blood started to seep.