Heat vs Bucks live stream: Watch online free Tuesday 7:30 ET as the defending NBA champions look to avoid being .500 in what could be the biggest surprise of the this 2013 season.

Actually, if the Bucks win vs the Heat, both teams will have a .500 record. Miami was the one-seed a year ago in the Eastern Conference while Milwaukee was the eighth seed. Watch the free live stream online as the first-round playoff matchup is renewed.

The 3-4 Heat vs 2-3 Bucks will be the first of three meetings this season. This first one will be at Miami, where LeBron James, Dwyane Wade and co. are 3-1. 

James reportedly reinjured his back after the buzzer-beater loss to the Boston Celtics in Miami's last game.

"I'm not 100 percent; my back is not where I want it to be," James, who had been questionable for the game told ESPN. "But I could still be effective. I thought I was (against the Celtics). I just didn't make enough plays to help us win."

In the past two road games, Milwaukee was down a combined 41 points at some point in those games against the Cleveland Cavaliers and Dallas Mavericks. The Bucks were able to make the comeback against Cleveland, though couldn't make an 18-point comeback against Dallas.

"I'm tired of playing comeback basketball," coach Larry Drew told ESPN. "I really am. It just takes too much out of you."

This new lineup of the Bucks has allowed 96 PPG while Miami has allowed over 100. The Heat score105 PPG while Milwaukee only scores 94.

The Bucks have yet to win two in a row or lose two in a row. Miami has surprisingly lost two in a row already this season and if Milwaukee can pull off the upset, the Heat will lose two in a row, again.

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