Donald Sterling has filed a new lawsuit against the NBA, its commissioner Adam Silver and his wife Shelly Sterling.
Former Los Angeles Clippers owner Sterling has claimed that all three parties defrauded him and violated corporate law in their attempts to sell the franchise to former Microsoft CEO Steve Ballmer.
Although Ballmer agreed to buy the Clippers back in May, the process has been slow and Sterling's latest move will only hinder it further.
Sterling has called for an injunction to freeze the $2bn [£1.17bn] sale, having stated that his wife had no authority to sell the franchise. He is arguing that, as sole owner and shareholder of the corporation which owns the Clippers, Shelly had no right to conclude a deal with Ballmer.
Shelly Sterling's attorney Pierce O'Donnell told reporters: "This is a frivolous, last-ditch act of desperation by a delusional, bitter man.
"He is obsessed with ruining a record-setting sale of the Los Angeles Clippers - a sale that would solve the problems his racist rant started three months ago."
Sterling was handed a lifetime ban and fined $2.5m [£1.5m] for racist comments he made in April.
He has already attempted to sue the NBA once, despite recently claiming that he felt "fabulous and ready to move on" from the incident.
