Miami cut its deficit to five points late in third quarter, but Atlanta's reserves helped ice the victory early in the fourth. Marvin Williams was the only starter on the floor as Atlanta quickly restored its lead to 91-75, holding the Heat without a field goal until Michael Beasley finally scored with 7:22 remaining. Zaza Pachulia, Joe Smith, Jamal Crawford and Maurice Evans combined with Williams to put the visiting team away.

"We've got the depth we need," Josh Smith said. "We treat each possession as precious because we know we've got something good going here."

This was a rematch of last season's opening-round playoff series, won by the Hawks in seven games. They were swept in the following round by LeBron James and the Cleveland Cavaliers.

The Hawks don't intend to go out so meekly this season.

"If we stay healthy and do what we're capable of doing, no one is going to sweep us," Smith said. "We'll make a series out of it with any team."

The Heat played without Udonis Haslem, who sat out after falling on his left shoulder in a loss to Oklahoma City the previous night. Quentin Richardson sustained a lower back strain early in the third quarter and didn't return, further cutting into Miami's depth.

NOTES: Haslem wanted to play, but the coaching staff decided to play it safe. The Heat hopes he can return for Friday's game at Toronto. "He's a tough guy," Heat coach Erik Spoelstra said. "He'd like to play through it but he jammed it pretty good." ... Johnson had the 61st 30-point game of his career. ... The Hawks improved to 6-0 home. On Friday against Houston, they'll try to improve to 7-0 for the first time since 1997. ... Miami has lost two in a row for the first time this season.