Police investigate assault complaint vs Nalbandian

By the Associated Press | June 18, 2012 | 6:09 AM EDT

Argentina's David Nalbandian, left, checks on the line judge after causing an injury to him, for which he was disqualified, during the Queen's Club grass court championships final tennis match against Croatia's Marin Cilic, London, Sunday, June 17, 2012. Nalbandian kicked the small barrier surrounding the line judge in anger. A piece of the barrier then hit the line judge, causing bleeding on his left shin. (AP Photo/Sang Tan)

LONDON (AP) — Police say they are investigating an assault complaint filed against David Nalbandian after the Argentine tennis player kicked an advertising board and injured a line judge during the Queen's Club final.

London police declined to say who made the complaint against Nalbandian, who was defaulted from Sunday's match against Marin Cilic.

Any member of the public who witnessed the event in person or on television could have made a complaint, as could the line judge himself.

Nalbandian was leading Cilic 7-6 (3), 3-4 when the incident occurred. After missing a running forehand, Nalbandian kicked the board under the male line judge's chair. A piece of the barrier cut the judge on the left shin, leaving him bloodied.

Tournament director Chris Kermode said the judge received first-aid care but needed no further treatment after seeing a doctor.