[NBC Sports Boston] - Undersized Pritchard does all the big-boy stuff for Celtics

Payton Pritchard should win NBA Sixth Man of the Year on Tuesday night, and the highlight package to announce the honor will invariably show a barrage of his 3-point shots. That’s understandable. Part of the reason that Pritchard will be collecting the John Havlicek Trophy and etching a new chapter in Boston’s storied history of sixth men is because he piled up an NBA record 246 3-pointers off the bench this season. But while those triples — especially the thrilling half-court