A probate judge has ruled that Donald Sterling cannot block the sale of the Los Angeles Clippers.

Shelly Sterling, his estranged wife, had arranged in May to sell the NBA franchise to former Microsoft executive Steve Ballmer for a record $2 billion.

Donald Sterling sued to block the deal. Shelly Sterling wanted him removed as a trustee of the Sterling Family Trust, which owns the Clippers, on grounds of mental incapacitation.

"The doctors certified Donald as incapacitated," argued Pierce O'Donnell, Shelly Sterling's attorney. "That's the end of the matter."

Superior Court Judge Michael Levanas ruled in her favor on Monday.

The judge "said he found Rochelle Sterling to be a more credible witness than her husband, who acted erratically during several days of testimony, raising his voice at lawyers from both sides, and referring to his wife as 'a pig,' " according to The New York Times.

Levanas said the sale can now proceed. Donald Sterling may not have much recourse at this point.

"The ruling included the extraordinary step of granting Shelly Sterling's request for an order that allows the sale to be completed regardless of an appellate court's intervention," the Los Angeles Times reports.

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