No team has ever come back from a 3-0 deficit in playoff history.
The only baseball to ever come back to win a playoff series after being down 3 games to none was the Boston Red Sox in the 2004 ALCS against the New York Yankees.
There have beenonly seven teams.
Which NBA teams have come back after being 3-0 in a playoff series
The steelers, The Rams, Phillies, Dodgers, and Bulls
miami heat 2006 vs dallas
No one has completed this feat in NBA history yet
You can add one more to that list however many it is, because the Miami Heat are about to do it
Boston Red Sox, Toronto Maple Leafs, Philadelphia Flyers, and New York Islanders
Only one! The Knicks vs Heat, game four, May, 6 2012. Against all odds, the Knicks beat the Heat 89-87 The Knicks only won a single game after being down 3-0. They didn't come back and win the series.