OKLAHOMA CITY -- San Antonio fought off Father Time, the league MVP and an injury to its best player to return to the NBA Finals.
San Antonio will host Game 1 on Thursday night and will try to avenge last year's heartbreaking loss. San Antonio led Miami 3-2 before losing Game 6 in overtime, then dropping Game 7.
"People keep talking like we weren't close to winning, but we were ready to win last year," Spurs center Tim Duncan said. "We're happy it's the Heat again. We've got that bad taste in our mouths still."
San Antonio pulled this one out despite All-Star point guard Tony Parker missing the entire second half and overtime with left ankle soreness. Popovich said Parker had been struggling with the ankle since Game 4 of the series. The Spurs overcame it the way they have for more than a decade -- with teamwork, passing and great performances by role players.
"We didn't know how much Tony was hurt in his ankle," Diaw said. "But we didn't want to go to Game 7, and we didn't know if he would be ready to play if we did or if he would be 100 percent, so we tried to get it over with tonight."
It was the third-best playoff scoring effort of Diaw's 11-year career and his best since 2006.
"Boris was amazing," Duncan said. "He had an unbelievable game. He's had a great series."
Russell Westbrook had 34 points, eight assists, seven rebounds and six steals, and MVP Kevin Durant added 31 points and 14 rebounds for the Thunder. But Oklahoma City committed 20 turnovers that led to 33 points for the Spurs. Westbrook and Durant each had seven turnovers.
"We started settling for too many jump shots," Thunder coach Scott Brooks said. "It just seemed like we couldn't get enough good looks at the basket. Defensively, they just had us scrambling around."
In what might have been his final game, Derek Fisher, 39, played every minute of the fourth quarter and overtime. He told Yahoo! Sports after the game that he doesn't plan to take too long to decide on retirement.
"Obviously, there are a number of people that are going to be impacted by the decision I do make whether I continue to play or [if] I decide to do something else within the game," Fisher, who is a candidate for the New York Knicks' coaching vacancy, told Yahoo! Sports. "Whatever it is, there is a lot at stake. I'm not going to rush. I'm not going to be emotional.
"It's possible that this does symbolize the end of a truly long career," he added. "I don't think based on the emotions that I'm feeling right now that it's smart to start betting on what I will do next.
San Antonio also handled Serge Ibaka's return from injury. Oklahoma City's defensive star missed the first two games with a strained left calf, but he returned to help the Thunder win the next two games and tie the series.
The series featured five blowouts wins by the home teams, but the closeout game was a gem. Oklahoma City overcame a 12-point deficit in the fourth quarter to force overtime.
"I have to be honest, this victory is really sweet because we know we played one hell of a team, and we take great satisfaction in that since they're so special," San Antonio coach Gregg Popovich said.
In overtime, Duncan's shot from the baseline rattled in to give the Spurs a 110-107 lead with 19 seconds to go.
Durant missed a good look at a 3-pointer, and the Spurs rebounded and went to the line. Diaw missed the first and made the second free throw to make it a four-point lead for the Spurs. Westbrook missed a wild 3-pointer, and Spurs wrapped it up.
San Antonio led by 12 early in the fourth quarter, but the Thunder chipped away at the free throw line after getting the Spurs into foul trouble. Back-to-back baskets by Westbrook and Durant cut San Antonio's lead to 93-91 with 4:01 to play, leading to the frantic final minutes.
Westbrook was fouled on a drive with 9.3 seconds to play. He made both free throws to tie the score at 101. Ginobili's fadeaway at the free-throw line against Westbrook missed, and the game went to overtime.
Ginobili said the Thunder were a significant hurdle, and he expects them to be a roadblock in the future.
"They are a pretty good team," he said. "They have so much talent, so much athleticism, so much future. They are a tough team."
The Spurs had just two assists and missed all five of their 3-point attempts in the first quarter. ... Spurs C Matt Bonner started for the second straight game. He made just 1 of 5 3-pointers in the first half as the Thunder backed off of him. ... Westbrook had four steals in the first half. ... Thunder coach Scott Brooks was issued a technical foul in the third quarter. ... Westbrook made his first 10 free throws and 17 of 18 overall. ... Thunder G Derek Fisher, 39, played every minute of the fourth quarter and overtime.
The Associated Press contributed to this report.