BOSTON — The Celtics didn’t miss a beat once the Cavaliers arrived at TD Garden on Tuesday night and extended their streak of not-so-competitive playoff wins to begin the Eastern Conference semifinals.
Outside of Cleveland holding a measly two-point lead — for 18 seconds — in the first quarter, Boston owned the steering wheel from start to finish. Jarrett Allen, the Cavaliers’ leader in rebounds (13.8 in playoffs)...