BOSTON, May 3 (Ticker) -- Jermaine O'Neal and Stephen Jackson helped the Indiana Pacers bounce back from a horrendous performance and move to the brink of the Eastern Conference semifinals.

O'Neal collected 19 points and 10 rebounds and Jackson nailed a key 3-pointer down the stretch as the Pacers held off the Boston Celtics, 90-85, to grab a 3-2 lead in their best-of-seven first-round series.
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Sixth-seeded Indiana allowed third-seeded Boston to shoot 57 percent (42-of-74) from the field in Saturday's 110-79 setback at Conseco Fieldhouse in Game 4 but limited the Celtics to 45 percent (29-of-64) in this one as the Pacers won here for the second time in the series.

"We've been through so much this year that it doesn't matter what happens - we feel like we can win," said O'Neal, whose team was decimated this season by suspensions and injuries. "We know how to win in a close series. We feel like we have more experience then they do. Our backs have been against the wall all season, every since that day in Detroit."

"Tonight we just wanted it more," Jackson said.

The Pacers held a 69-54 lead after a turnaround jumper by Reggie Miller with 3:41 left in the third quarter before the Celtics pulled within 70-65 entering the fourth period. Boston got within two points three times in the final period, including at 82-80 after a spinning leaner by Paul Pierce with 3:06 to play.

But Jackson, who scored 15 points, countered with a 3-pointer from the left wing as the shot clock was about to expire with 2:38 left to give the Pacers an 85-80 cushion.

"It wasn't one of my more comfortable shots," Jackson said. "I went to drive and then I stepped back and created some room. That was great defense by (Celtics forward) Antoine Walker. If I took that shot again, I can't say that I'm going to hit it."

The Celtics cut the deficit to 86-83 on a layup by Marcus Banks with 28 seconds remaining, but Anthony Johnson sank a pair of free throws a second later, and Boston got no closer.

"The little things are hurting us," Pierce said. "Our ball movement was there, plus our inability to get out on the break was a big factor, (22) turnovers and our decision-making. Right now our backs are against the wall and I think this team is going to respond."

Jamaal Tinsley, who had not played since February 23 because of a badly bruised left foot, started at point guard for Indiana and had six points and seven assists in 28 minutes.

Pierce scored 27 points and Ricky Davis added 19 for the Celtics, who visit Indiana for Game 6 on Thursday.

Walker, who served a one-game suspension in Game 4 for pushing a referee, had 10 points on 5-of-13 shooting in 31 minutes. He was benched by Celtics coach Doc Rivers with 5:32 left to play in the third quarter after missing a layup and committing a pair of turnovers and did not return until the 6:57 mark of the final period.

"The way the game was going, that's a tough decision for a coach," Walker said. "He decided to go with a smaller unit. In Game 5 you have to respect that. This series is obviously not going well for me and all I can do is suck it up and find a way to help the team win on Thursday night."