GREELEY, Colo. (AP) _ A tentative plea bargain has been reached in the drunk driving case against Colorado Rockies co-owner Charlie Monfort, prosecutors said Monday.

Details will not be released until a May 8 hearing.

Monfort was arrested shortly after 1 a.m. last June 23 after leaving a Greeley restaurant. Police said his blood-alcohol level was 0.209 percent. The legal limit in Colorado is 0.10.

Monfort's attorney, Chuck Dickson, said last month that Monfort had a severe case of heartburn at the time, which skewed the results of the alcohol test.

A judge was scheduled to rule Monday on whether heartburn would be allowed as a defense, but prosecutors told the judge they had worked out a plea bargain with Dickson.

Dickson earlier attacked the arresting officer's credibility. After two hearings, the judge ruled Dickson could use some complaints against the officer in court.

Monfort and his brother, Dick Monfort, make up two-thirds of the Rockies' ownership group. The brothers serve as vice chairmen, while Jerry McMorris is the team's chairman, president and CEO.