Here’s a Celtic worry: In an NBA postseason hinting at upsets, why not the 76ers?

BOSTON — The bonus buzzkill that accompanies any loss by the Boston Celtics, particularly in the playoffs, is the ear-splitting referendum over the value, the purpose, the existence of the 3-point shot.And here we go again. The Celtics connected on just 11 of 39 3-point attempts in their 113-97 loss to the Philadelphia 76ers on Tuesday night at TD Garden, which means this opening-round series that a lot of people thought would last just four games (hello there, me), and then five games (hello there again, me), is now headed back to Philly on Thursday night for Game 6.Advertisement