Hans Deryk / Reuters

Cleveland's LeBron James dunks the ball for two of his game-high 48 points in the Cavaliers' 109-107 double overtime win over the Pistons in Game 5 of the Eastern Conference finals Thursday. James scored 29 of his team's final 30 points, including the game-winning layup with 2.2 seconds left.

updated 3:02 a.m. ET June 1, 2007

AUBURN HILLS, Mich. - LeBron James grimaced, limped up to the podium and plopped into a chair behind a microphone.

It was the only time he looked human all night.

James had already used every ounce of energy to put together one of the most spectacular performances in playoff history, lifting the Cleveland Cavaliers to the verge of their greatest season.

James’ career playoff-high 48 points — including his team’s final 25 and 29 of its final 30 — carried Cleveland within a win of the NBA finals for the first time in franchise history with a 109-107 double-overtime victory over the Detroit Pistons on Thursday night.

After the breathtaking display of talent and will gave the Cavs a 3-2 lead in the Eastern Conference finals, the 22-year-old star said he felt terrible.

“I’m banged up. I’m winded. I’m fatigued,” he said. “I’ve got all day tomorrow. It’s going to be tough to get some rest when you got a crazy, 2-year-old running around the house. So hopefully, I can take him to one of his grandma’s house.”

James has the playoff-tested Pistons on the brink of going home.

Game 6 is Saturday night in Cleveland and if necessary, Game 7 will be Monday night back at The Palace of Auburn Hills.

If James can come remotely close to what he did Thursday night, the series might not return to Michigan.

The San Antonio Spurs, who eliminated Utah on Wednesday, have a week off before hosting Game 1 of the NBA finals.

James made a go-ahead layup with 2.2 seconds left and Detroit’s Chauncey Billups missed a shot in the lane on the ensuing possession.

It was one of the many driving shots that James made look easy.

“Why should I be surprised? I was making a lot of great moves,” James said. “They are definitely a great defensive team, but I was determined to attack.”

The Pistons blew a seven-point lead with 3:15 left in regulation and lost the third straight game in the series after winning the first two at home.

Detroit can only hope the series ends like its last postseason matchup with the Cavs.

The Pistons won the first two games of the conference semifinals last year, then lost three straight and needed to win on the road and then at home in Game 7.

Detroit, with four of the same starters, also advanced in the 2004 and 2005 playoffs after trailing 3-2.

Special feature A look back at Spurs' win over Cavs

James was 18-of-33 from the field, making two 3-pointers, and 10-of-14 from the free throw line. He also had nine rebounds, seven assists and two steals in a performance that might end up be a defining game of his career.

He was the only Cavs player to make a field goal in the last 17:48 and the only one to score in the final 12:49.

James shot an airball just before the shot clock expired with 6.6 seconds left in the first overtime that gave Detroit a chance to force another period.

James put Billups on the line with 3.1 seconds left and he made two free throws to make it 100-all.

The Cavs have prided themselves on not being a one-man show, but James just about did it alone against a team in the conference finals for the fifth straight year.

“We threw everything we had at him,” Billups said. “We just couldn’t stop him.”

James simply took over late in regulation and in both overtimes, choosing to attack the basket with driving layups and dunks instead of deferring to teammates.

“I was able to will my team to victory,” James said. “This is definitely a big win, one of the biggest wins in Cavaliers’ franchise history. For me and my teammates, it’s definitely the biggest win.

“But we have a goal, we can’t dwell on this when we have another game on Saturday. We have got to do our best to try to win that ballgame and get where we wanted to be all year.”

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