P.J. Washington Rebounds Prop is currently Over/Under 5.5 (-210/+155).
The money has been on the Over as it opened 5.5 @ -160 before it was bet up to 5.5 @ -210.
FACTORS THAT FAVOR THE OVER:
The Toronto Raptors have played at the 5th-speediest pace-of-play in the league since the start of last season, which should increase plays for the Dallas Mavericks.
FACTORS THAT FAVOR THE UNDER:
The Mavericks check in as the 6th-worst offensive rebounding offense in the NBA since the start of last season (offensive rebounds maintain possession, and a lack of them can therefore eliminate extra chances for scoring and assists).