‘It ate away at me’: Payton Pritchard turned a tough night against Knicks into an offensive masterclass

BOSTON — Payton Pritchard was glad the Celtics beat the New York Knicks for their first win of the season on Friday night. But he couldn’t stop thinking about his own lackluster performance — 4 points on 1-for-5 shooting in 30 minutes off the bench. He wasn’t as aggressive as usual, and he didn’t attack […]