INDIANAPOLIS – The Boston Celtics earned themselves one more chance at home, though that’s hardly been an advantage so far.

In the wildest game yet of a series headed to a Game 7, the Celtics overcame the late ejection of Paul Pierce and sent their first-round match up with the Indiana Pacers back to Boston for the deciding game with a 92-89 victory last night.

“That is the craziest game I’ve ever seen in my life,” Celtics coach Doc Rivers said. “This series has just been unreal.”

In the six games thus far, the home team has won just twice. Three of the games were blowouts, and each time the losing team came back to win the next one on the road.

Last night, Antoine Walker scored 24 points, including a 3-pointer early in overtime and the clinching basket with a minute left to keep Boston alive.

Boston came back from an early 11-point deficit, took the lead late in the second quarter, and stayed in front until the closing seconds of regulation, when Pierce was ejected for his second technical foul.

Boston led 84-83 at the time, and Pierce had just been intentionally fouled by Jamaal Tinsley as the Pacers tried to stop the clock. Tinsley hit Pierce in the neck while fouling him, and Pierce appeared to swing his elbow in anger.

“It was an overreaction to a hard foul and I lost my cool out there. It almost cost us,” Pierce said. “I’m just happy we got the win. I don’t know how I’d feel if we lost this game.”

Referee Steve Javie did not immediately make a call. But after huddling with the other two officials, Pierce was assessed his second technical foul of the game – an automatic ejection.

Reggie Miller hit the technical foul shot to tie the game, and the Pacers got to choose which Celtics player would replace Pierce at the foul line. They selected Kendrick Perkins, a 64% foul shooter, and he missed both attempts.

The Pacers then had a chance to win, but Miller shot an air ball from well behind the 3-point line, sending the game to overtime.

Al Jefferson scored the first basket of the extra period, and there was one more tie before Walker’s 3-pointer put the Celtics ahead to stay. His next basket made it 91-87 before Tinsley scored, and Indiana got the ball back with 15 seconds left.

Jermaine O’Neal then missed a 16-foot turnaround and the ball went out of bounds over the backboard. Delonte West hit one of two free throws to finish the scoring for Boston, and Indiana’s Anthony Johnson missed a 3-pointer with 0.7 seconds left.

“We’re now in a situation where we have an opportunity to play what I call the ultimate game and it’s never easy to close out a series, no matter what happens,” Indiana coach Rick Carlisle said. “It’s tough. We’ve got to go up there and get a win.”

The winner of Game 7 will open the Eastern Conference semifinals at defending NBA champion Detroit.