Philadelphia led after one (28-24) and after three (94-84 margin flipped to Boston by then, with the 76ers up 94 after three on the scoreboard tally).
Hugo Gonzalez led all scorers off Boston's bench with 21 points on 6-of-10 shooting, including 3-of-7 from three. Ron Harper Jr. 5 minutes with a plus-18, and Milos Uzan scored 14.
Boston's bench outscored Philadelphia's reserves 77-36, the single biggest gap in the box score.
27 points on 7-of-13 shooting and 11-of-13 from the line led all starters.
Boston beat Philadelphia 125-120 in overtime at Xfinity Mobile Arena, the Celtics' reserves scoring 77 points to push the game past regulation after it was tied 115-115. It's a preseason game, so no…