MIAMI, Fla --- LeBron James led a title-saving charge, and now his crown will be on the line one more time in Game 7.
James powered Miami to a frantic fourth-quarter rally and overtime escape as the Heat beat the San Antonio Spurs 103-100 on Tuesday night to extend the NBA Finals as far as they can go and keep Miami's repeat chances alive.
Losing his headband but keeping his cool while playing the entire second half and overtime, James finished with 32 points, 10 rebounds and 11 assists, making the go-ahead basket with 1:43 remaining in the extra period.
"If we were going to go down tonight, we're going to go down with me leaving every little bit of energy that I had on the floor," James said.
Tim Duncan scored 30 points for the Spurs, his most in an NBA Finals game since Game 1 in 2003, but was shut out after the third quarter. He added 17 rebounds.
Game 7 will be in Miami Thursday, the NBA's first do-or-die game to determine its champion since the Lakers beat the Celtics in 2010. "They're the best two words in sports: Game 7," Heat coach Erik Spoelstra said.
The Spurs looked headed to a fifth title in five chances when they built a 13-point lead with under 4 minutes left in the third quarter, then grabbed a five-point edge late in regulation after blowing the lead. But James hit a 3-pointer and Ray Allen tied it with another. Just 5.2 seconds remained in regulation.
The Heat were that close to the edge. James was just 3 of 12 after three quarters, the Heat trailing by 10 and frustration apparent among the players and panic setting in among the fans.
Nothing to worry. Not with James playing like this. He finished 11 of 26, even making a steal after his basket had given Miami a 101-100 edge in the OT.