LOS ANGELES -- A neurologist has testified that Donald Sterling has Alzheimer's disease as a trial over the Los Angeles Clippers sale finally gets underway.
Dr. Meril Sue Platzer said Monday that she was hired by Sterling's wife, Shelly, to evaluate him.
The NBA has moved to oust Sterling as team owner because of racist remarks he made.
Shelly Sterling has made a $2 billion deal to sell the Clippers to former Microsoft CEO Steve Ballmer but Donald Sterling claims she didn't have authority to make a unilateral agreement.
Earlier in the day, a federal judge rejected a motion by Sterling's lawyers to move the case to federal court.
Sterling was the first person called to testify Monday but he wasn't in court and was ordered to show up this afternoon when the trial resumes.
The non-jury trial will determine whether Shelly Sterling had authority under terms of a family trust to unilaterally negotiate the deal.
She had two doctors examine her 80-year-old husband and they declared him mentally incapacitated and unable to act as an administrator of the Sterling Family Trust, which owns the Clippers.
The court must find that Sterling's wife acted in accordance with the trust and that the deal still applies -- even though the trust has since been revoked by Donald Sterling -- for the sale to proceed.
In seeking a move to federal court last week, Sterling's attorneys argued that their client was induced to undergo mental examination under false pretenses and that his private, personal medical records were given to his wife's "handpicked" doctors in violation of federal medical privacy laws.
His wife's lawyers claim Donald Sterling's legal maneuvers were just a tactic to run out the clock on the Clippers sale.