MIAMI (AFP) - The San Antonio Spurs can move within one win of their fifth NBA title with a victory over reigning champions Miami in Game Four of the NBA Finals tomorrow morning (Singapore time).

San Antonio handed the Heat their first home loss of the play-offs, shooting a stunning 76 per cent in the first half to win Game Three 111-92 and take a 2-1 lead in the best-of-seven championship series.

The Spurs are the first team since 1989 to return to the finals after losing Game Seven in the finals the year before.

Their bruised egos simply will not let them forget last year's seventh-game loss to the Heat.

"We finally put a game together, for not the full 48 (minutes) but for as long as we could, where we did exactly what we planned to do and executed in that respect," Spurs veteran Tim Duncan said.

"That's what we're going to need to do again," he added.

"Execution-wise, we have a game plan in place that worked and it's about the five guys on the floor just making sure that we make as little mistakes as possible."

The two-time defending champions Heat are also looking forward to Game Four, confident in their ability to bounce back.

Miami are the best team in the league at rebounding from a defeat as they have won 13 consecutive play-off games following a loss.

"They came in and took care of business on our home floor so we have to learn from it and come out in Game Four and make the adjustments," Heat superstar LeBron James said.

Miami have not dropped back-to-back play-off games since losing games three, four and five of the 2012 Eastern Conference finals to Boston.

The Heat went on to win the series in seven games.