Boston learns the hard way that preseason pain still hurts

The Celtics lost 105–103 to Toronto after leading by 27, collapsing late as turnovers piled up and reserves froze under pressure. Baylor Scheierman’s 6 assists weren’t enough, and Chris Boucher shone with 19 points.

At least it’s preseason—Boston’s defense disappeared faster than a spilled coffee at TD Garden.