The No. 1 seed Cleveland Cavaliers swept the No. 8 seed Miami Heat on Monday, becoming the first team in the Eastern Conference to advance to the second round. The Detroit Pistons ' comeback to even their first-round series fell short Sunday, as the New York Knicks head back to Madison Square Garden with a chance to close it out Tuesday.

The second round is scheduled to get underway from Monday, May 5, to Tuesday, May 6, according to the NBA. But those start dates could be moved up to Saturday, May 3, and Sunday, May 4, depending on when first-round series conclude. The NBA playoffs follow a bracket format and do not reseed teams after the first round.

The NBA postseason is up and running. Can the Celtics defend their title? Will the retooled Lakers make a run to the Finals? Or, is it Oklahoma City's time to take over as top dog? Check out the odds for the NBA playoffs as of April 28.

Milwaukee Bucks guard AJ Green (20) fouls Indiana Pacers guard Tyrese Haliburton (0) as he shoots during overtime in Game 5 of an NBA basketball first-round playoff series in Indianapolis, Tuesday, April 29,

The Pacers will now play the No. 1 overall seed Cleveland Cavaliers. The schedule for that series is yet to be announced. Before that matchup gets underway, here's a look back at how the Pacers completed their miraculous comeback,