Russell Westbrook had 40 points and 10 assists, and the Oklahoma City Thunder beat the San Antonio Spurs 105-92 on Tuesday night to tie the Western Conference finals at two games apiece.

Westbrook also had five rebounds and five steals. Kevin Durant added 31 points on 11-for-22 shooting.

"Coach (Scott Brooks) told us he needed maximum effort from us tonight, and it starts with me at point guard," Westbrook said. "My job is to play both sides of the ball. If you want to win a championship, those are things you have to do."

Boris Diaw and Tony Parker each scored 14 points for the visiting Spurs, whose starting five totaled 39 points.

San Antonio will host Game 5 on Thursday.

"We're just going to have to play better, bottom line. We didn't play well here. Now all we can control is Game 5," Parker said.

Oklahoma City dominated for the second consecutive game after getting blown out in the first two. The Thunder led 58-43 at halftime. A lob from Reggie Jackson to Durant for a two-handed slam bumped the lead to 60-43. A steal and jam by Serge Ibaka made it 66-49, and a dunk by Westbrook made it 76-49.

Clippers: Donald Sterling responded to the NBA's attempt to oust him as an owner, arguing that there is no basis for stripping him of his team because his racist statements were illegally recorded "during an inflamed lovers' quarrel in which he was clearly distraught."

Sterling says V. Stiviano recorded him without his knowledge and thus the recording was illegal under California law.

"A jealous rant to a lover never intended to be published cannot offend the NBA rules," Sterling said in the document, which was first reported by USA Today.

Meanwhile, the attorney for Shelly Sterling confirmed that Donald Sterling has given her written permission to sell the team.

NBA owners are scheduled to vote next week on whether to strip Sterling of the team.

Pacers: The NBA fined forward Paul George $25,000 for his public criticism of the officiating in the Eastern Conference finals Game 4 loss to Miami. Miami leads the series 3-1 and can advance to the NBA Finals for the fourth straight year with a win in Indiana on Wednesday night.