Lakers star LeBron James, left, battles Boston Celtics center Luke Kornet for a rebound during the first half Saturday night.

Lakers star LeBron James, left, battles Boston Celtics center Luke Kornet for a rebound during the first half of the Lakers’ 111-101 loss Saturday night. James left the game in the fourth quarter because of a groin strain.
In seasons of struggle, the Lakers’ trip to Boston produced the kind of crowd noise that could match a smartwatch alarm. In seasons such as this one, where a June rematch isn’t hard to fathom, the decibels only go up.
But no amount of noise, no amount of tradition, no amount of atmosphere could save the Lakers from a future that instantly became uncertain when LeBron James sustained a groin strain during the Lakers’ 111-101 loss to Boston on Saturday night.