Updated

A judge has barred Donald Sterling's lawyers from calling opposing counsel to the witness stand in a trial over the proposed $2 billion sale of the Los Angeles Clippers.

The judge on Friday also barred testimony about Sterling's mental competency and rejected a bid to strike the testimony and reports of two doctors who found Sterling lacked the capacity to conduct his own business affairs.

The judge said the results of Sterling's examinations have been in the newspapers and in public and can no longer be considered secret.

A lawyer for the team's potential buyer, Steve Ballmer, said outside court that he fears Sterling is stalling the sale despite the incredible value he'd get for the team.

Attorney Adam Streisand said Sterling is on a "suicide mission by a madman."