The Celtics are coming off one of their best offensive performances of the season, havinghung 147 points on the Heatin Miami on Wednesday.Boston set a franchise record with 53 points in the first quarter, shooting better than 70 percent both from the field overall and from 3-point range in the opening period.Jaylen Brown had 20 points in the first and finished with 43. Jayson Tatum logged his first triple-double of the season with 25 points, 18 rebounds, and 11 assists as he continues to improve
