That desire to prove naysayers wrong, a Celtics' rallying cry all season, is what gives them a chance - OK, a real slim one - against LeBron and the Cavs.
The Cleveland Cavaliers' Big Three faces the Celtics with 158 games of playoff experience, all of them from LeBron James.
Jae Crowder has succeeded playing any part for the Celtics. A look back at how he, and his game, developed tells you why.
Maxwell: Most important thing for Celtics is playoff experience
Gary Tanguay says the Celtics won't beat the Cavs, but they'll make it competitive.
The Celtics feel they can go into Cleveland and win.