Anfernee Simons Rebounds Prop is currently Over/Under 3.5 (+374/-580).
The money has been on the Over as it opened 2.5 @ -107 before it was bet up to 3.5 @ +374.
FACTORS THAT FAVOR THE OVER:
Offensive rebounds preserve possession and lead to added chances for scoring and assists, and the Boston Celtics grade out 5th-best in in the league with 12.8 offensive rebounds per game this year.
FACTORS THAT FAVOR THE UNDER:
The slowest pace-of-play offense in the league this year has been the Celtics.
The Toronto Raptors have played at the 5th-most sluggish pace in the NBA over the last 10 games, which ought to decrease possessions for the Celtics.