June 14 (Reuters) - Alphabet's Google must

face trial on U.S. antitrust enforcers' claim that the internet

search juggernaut illegally dominates the online advertising

technology market, a federal judge ruled on Friday.

U.S. District Judge Leonie Brinkema in Alexandria, Virginia,

denied Google's motion during a hearing, according to court

records.

Google had argued for a win without a trial, saying that

antitrust laws do not block companies from refusing to deal with

rivals and that regulators had not accurately defined the ad

tech market.

Court papers did not specify what reasons the judge provided

at the hearing. Motions like the one Google filed are only

granted where a judge determines there is no factual dispute to

send to trial.

Brinkema is scheduled to preside over trial in the case on

Sept. 9.

"We look forward to setting the record straight," a

spokesperson for Google said.

A Justice Department spokesperson declined to comment.

The Justice Department and a coalition of states sued the

tech giant last year, claiming it was unlawfully monopolizing

digital advertising and overcharging users. The lawsuit seeks

primarily to break up Google's digital advertising business to

allow for more competition.

The regulators convinced Brinkema on Friday to block a

former FBI agent who acted as a cybersecurity consultant for

Google from testifying as an expert at the trial.

Google notched a win in the case last week when Brinkema

allowed the trial to go forward without a jury, after the

company settled claims that its conduct harmed the U.S.

government.