I was trying to dig up stats from past series where a team was up 3-0 and lost game 4. I couldn't find any info in any sort of categorized way, and don't have the time do it the hard way.
I know that the series rarely goes to a 6th game, and I think only once has it been pushed to a 7th (I think Denver did this to Utah).
Of course, no one has ever come back to win the series down 3-0 in the NBA.
The scenario that I was looking for was the team who lost game 4 when up 3-0 doing so as a home team. This can not have happened more than a few times - just by the very nature of the team hosting game 4 is the lower seed, and therefore generally not in the sweeping position.
Unlike the Heat series, the Celts now have to truck back to the opponents home court, and that's the sucky part.
Can anyone remember a similar scenario? Home team blowing a shot at the sweep?