CLEVELAND — Leprechauns are imaginary. Celtic pride is very real.
Avery Bradley’s 3-pointer danced on the rim and dropped with less than a second left and Boston, blown out in the first two games of the Eastern Conference finals and playing without star Isaiah Thomas, stunned the Cleveland Cavaliers 111-108 on Sunday night in Game 3 to end the champions’ 13-game postseason winning streak.
Bradley’s shot from the left wing — off a play designed by coach Brad Stevens — bounced on the rim four times before going down. It capped a furious, focused comeback by the Celtics, who trailed by 21 in the third quarter before rallying to tighten up a series that appeared to be over.
“We have guys who have chips on their shoulders,” Boston coach Brad Stevens said. “We knew that Friday (Game 2) was a disaster. It wasn’t worth all four. It was worth one. So we got back together.”
Smart, who started in place of Thomas, made seven 3-pointers and scored 27 points, and Bradley…