MIAMI, May 2 (Ticker) -- Dwyane Wade might wake up sore on Wednesday but he sure feels great right now.

Shortly after taking a nasty fall that left him hobbled, Wade returned in near-heroic fashion to spark the Miami Heat to a critical 92-78 victory over the Chicago Bulls in Game Five of their first-round series.

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Antoine Walker contributed 17 points and Shaquille O'Neal 16 for Miami, which rebounded from road losses in the last two contests to take a 3-2 lead in the best-of-seven series. The Heat can advance to the conference semifinals with a victory in Chicago on Thursday.

"We needed this win tonight," said O'Neal, who added 10 rebounds and three blocks. "We want to try and close them out on Thursday."

Miami appeared to be in serious trouble as it trailed, 55-50, with less than six minutes remaining in the third quarter. Wade was out of the game with a bruised hip that he sustained late in the second quarter and O'Neal was saddled with four fouls.

"I got a shot and I knew the medicine would kick in," Wade said. "I saw we were down by five and Shaq was hit with his fourth foul, and I said to the trainer that I was OK. I saw the opportunity at the timeout to get in there right away and try to contribute. He was working on me but I had to be out there."

Wade re-entered the game with 5:50 left in the third period and promptly sparked the Heat on a 16-6 run over the next 10 minutes that totally changed the momentum of the game.

"The first two minutes was pretty rough on me," said Wade, who recorded the 23rd 20-point effort of his postseason career. "It was very sore and tight. I told my teammates I wasn't going to out there too long, but as I started moving around it got looser and looser. I felt good after that. I didn't know how effective I would be, but it was good enough that I was able to help my team pull out a win."

Wade, who finished 9-of-10 from the line, made a pair of free throws to tie it at 55-55 with 3:39 to play in the third and drilled a 15-foot jumper 1 1/2 minutes later to give Miami a two-point lead.

The third-year superstar opened the fourth with a stepback jumper before Gary Payton and James Posey each made a basket. On the next two trips, Wade found O'Neal for a thunderous alley-oop and knocked down a bank shot for a 71-61 lead with 8:12 on the clock.

"He's always going 110 percent, but he sort of slowed down a bit," said Posey, who returned from a one-game suspension to score 12 points and grab eight rebounds. "But he still made shots and found guys and did what he does. ... He was in a lot of guys faces saying, 'Let's get it done.'"

The Bulls clawed within 77-73 on two free throws by Mike Sweetney with 4:47 left, but Payton answered with a floater and Wade drilled just his 14th 3-pointer of the season - and first of the series - to restore a nine-point lead.

The league's fifth-leading scorer during the regular season, Wade finished with 28 points on 9-of-18 shooting, adding five assists and five rebounds. He scored 15 of his points after returning from the injury, which he sustained with 2:35 left in the first half on a mid-air collision with the 270-pound Sweetney.

"Tonight we felt a little bit of pressure and once Dwyane went down, it was a shock," Heat coach Pat Riley said. "We all got stunned, but we were able to weather the storm not knowing what was going to happen to him. Strange things happen when you think things are at their worst."

"Wade came back and he and Shaq did what superstars are supposed to do. They're supposed to take over the game," Sweetney added. "They got their team going and their confidence going."

Limited to 26 minutes, O'Neal made 7-of-9 shots from the field but knocked down just 2-of-12 free throws as Miami connected on only 22-of-41 as a team.

Chicago was led by 23 points from Andres Nocioni, who made 6-of-11 shots and also grabbed a team-high 10 boards. However, the Bulls ultimately were unable to overcome the shooting woes of Ben Gordon and Kirk Hinrich, who combined for only 19 points on 6-of-29 shooting.

"We felt like we got good looks," said Hinrich, who scored nine points on 3-of-13 shooting and also committed six of Chicago's 19 turnovers. "I think they definitely made adjustments. They tried to be a little more aggressive against our pick-and-roll game. But with all that said, we just didn't do a good enough job."

Bulls center Tyson Chandler, who was listed as questionable after spraining his right ankle late in Game Four, played only four minutes off the bench in this one. He did not attempt a field goal while committing five fouls and a turnover.

The first half was not pretty offensively for either team. Miami entered intermission with a 40-38 lead despite shooting under 37 percent from the field and making only 10-of-20 free throws. Chicago was not much better, missing all eight of its 3-pointers and shooting a pitiful 34 percent.

"When the time came to make plays, they made a flurry," Bulls coach Scott Skiles said. "That coupled with some very poor decisions that we made (and) in a matter of minutes the game was gone."