Former Los Angeles Clippers owner Donald Sterling lost his final chance to block the $2 billion sale of the NBA team to former Microsoft Chief Executive Officer Steve Ballmer, when a California appeals court refused on Wednesday to halt the deal.

The three-judge panel rejected Sterling's bid for an immediate stay of the sale brokered by his estranged wife, Shelly Sterling, ruling the deal with Ballmer had already been completed and that the 80-year-old real estate billionaire failed to show how the NBA-record sale would cause him harm.

Ballmer, 58, became the team's owner when the sale closed on Tuesday, bringing an end to a near four-month saga that saw Sterling banned for life from the NBA and fined $2.5 million for racist remarks.

Shelly Sterling, 79, was given the go-ahead by a Los Angeles probate judge last month as the court said she had the power and fiduciary duty to complete the deal with Ballmer.

The court also denied Sterling's request to overturn the lower court's decision.

Sterling will still profit from the sale, pocketing the $2 billion along with his wife.

The appeals court's rejection of Sterling's petition is another victory for the NBA as the league has so far been able to remove an owner without having to take the action itself, legal observers said.

Shelly Sterling's attorney, Pierce O'Donnell, said in a statement: "It is time for Donald to accept that the game is over and he has run out of courts."

Lawyers for Sterling had argued that a probate judge ruled too broadly by allowing Shelly Sterling to employ a little-used section of California probate code that would let the sale go ahead pending an appeal.

Shelly Sterling struck the deal with Ballmer in May, a month after the NBA banned her husband after his privately taped remarks imploring a girlfriend not to publicly associate with black people were published.

Sterling's remarks during the Clippers' playoff run sparked public outrage, prompted sponsors to cut ties with the team and players considered a boycott.

Sterling, who originally blessed the deal his wife struck with Ballmer, refused to accept it after the NBA would not lift his lifetime ban or rescind his $2.5 million fine.

The NBA still faces civil lawsuits in California and U.S. courts from Sterling, who says the league's actions relied on illegal evidence and violated corporate law in its attempts to have the team sold.

Sterling's attorneys called the appellate ruling "harsh."

"Nevertheless, we are confident Donald will be completely vindicated in his federal case against the NBA," attorneys Maxwell Blecher and Bobby Samini said in a statement.

Ballmer, who had previously pursued an NBA franchise, will make his first public appearance as owner at a Clippers fan rally next Monday.