Reigning NBA champions Miami are on the brink of elimination from the play-offs after Chicago won 104-96 in Florida to take a 3-0 first-round series lead. Ben Gordon had 27 points and Britain's Luol Deng 24 as the Bulls rallied from 72-60 down in the third period.
Still trailing 79-72 in the fourth, they went on a 15-2 run to lead 87-81 and were never behind again.
No team in NBA history has won a play-off series after trailing 3-0. Game four is in Miami on Sunday.
Dwayne Wade led the Heat with 28 points, while Shaquille O'Neal added 23
points and 13 rebounds.