( CNN ) -- A new doctor has declared Los Angeles Clippers owner Donald Sterling mentally fit after a comprehensive medical examination in Las Vegas over the weekend , CNN confirmed through a source with knowledge of the situation . The exam was conducted by Dr. Jeffrey Cummings , a neurologist with the Cleveland Clinic and one of the top dementia and Alzheimer 's disease specialists in the country , according to the source . Cummings determined Sterling has no signs of dementia and no lack of mental capacity , but he did show signs of MCI , mild cognitive impairment , which is common in people Sterling 's age , the source said . Sterling is 80 years old . The testing , arranged by one of Sterling 's attorneys , lasted more than an hour , the source added , and found no indication Sterling ca n't manage his business affairs . The latest medical exam follows a previous diagnosis by two other doctors , engaged by his estranged wife Shelly Sterling , that determined Sterling is mentally incapacitated . Cummings , the source said , has agreed to testify at the trial over Sterling 's mental capacity , which is scheduled for July 7th . Shelly Sterling filed a lawsuit in a dispute over the sale of the team with her estranged husband , asking a Los Angeles court to uphold her deal to sell the Clippers to former Microsoft CEO Steve Ballmer for $ 2 billion . She contends her husband is incapacitated by the onset of Alzheimer 's or another brain disease . The couple co-owns the basketball team . If one of the trustees is declared mentally incapacitated , the other becomes the lone trustee , according to records . His wife used that provision to negotiate the deal with Ballmer . Sterling 's attorneys are due in court Monday afternoon for a hearing on legal jurisdiction in the case . They also plan to ask for a postponement in the start of the trial . Donald Sterling made national headlines in early April when a website leaked a phone recording of Sterling making racist comments to a friend . After the recording surfaced , the NBA banned him for life and fined him $ 2.5 million . Brian Todd contributed to this report .
Cleveland Clinic doctor finds Donald Sterling does not have Alzheimer 's or dementia . The NBA star is accused of using racist and homophobic slurs against his girlfriend V. Stiviano in a recorded conversation with her friend R. Kelly on an iPhone last year. Sterling attorneys are due in court on Monday , a week before the trial over his mental capacity .