LeBron James led the Heat in the team's most recent win with 35 points in a 101-93 overtime victory that gave Miami a commanding 3-1 lead in the best-of-seven series.
Miami has used dominant defense and solid team play to overwhelm the Bulls in the last three games. The Heat's Big Three have really come up big in this series, with the trio contributing in key moments on both sides of the floor.
Derrick Rose had a chance to win Game 4 in regulation, but LeBron's defense shut down the league MVP.
After Dwyane Wade struggled in the game, he came alive in overtime, scoring six of his 14 points, as well as two crucial defensive plays that helped give the Heat enough to hand the Bulls their first three-game loosing streak of the season.
Rose has been limited to 36 percent shooting in the series, and that in large part can be attributed to James stellar defense.
Miami has also gotten a big lift from their bench, mainly Mike Miller and Udonis Haslem, who has returned from injury to give the Heat toughness and rebounding that they had previously been lacking.
Miller broke out of his slump to post 12 points and nine rebounds in the midst of his newly born child being in the intensive care unit. Miami will need bench production again if they want to end the series tonight.
Chicago is looking to rebound on their home floor in order to avoid elimination and bring the series back to Miami for a Game 6. They have struggled in the fourth quarter against Miami, who has outscored them by 25 points in games 2-4 in the fourth quarter and overtime.
Game 5 begins at 8:30 pm ET with the Heat keeping the same starting lineup of LeBron James, Dwyane Wade, Chris Bosh, Mike Bibby and Joel Anthony and the Bulls sending out Derrick Rose, Joakim Noah, Luol Deng, Carlos Boozer and Keith Bogans.