Marin Cilic has won the Aegon Championships after David Nalbandian was defaulted because of Unsportsmanlike Conduct.

The Argentine was leading by a set and trailing 3-4 when he kicked an advertising board in frustration at losing a point, injuring a line judge sitting nearby.

ATP World Tour Supervisor Tom Barnes was called to the court and ruled that the offence was an automatic disqualification for Nalbandian.

Barnes said: “It is unsportsmanlike conduct, and the supervisor has the authority to declare an immediate default. Once I saw that the line judge was injured, I didn't have any other option.”

A Tournament Spokesperson said: "The well-being and safety of spectators, staff, officials and players is our primary concern at all times.  A line umpire was injured in the final and treated on-site. The final was ended with a default for unsportsmanlike conduct.'

David Nalbandian said: “I made a mistake and I apologize. I feel very sorry to the guy.  I didn't want to do that.”

Marin Cilic said: “I wanted to win the title, but to win like this is obviously a little bit bitter. It is not how I wanted to win the title."

The doubles title was won by top seeds Max Mirnyi and Daniel Nestor, who defeated Bob and Mike Bryan 6-3, 6-4.