D'Angelo Russell Assists Prop is currently Over/Under 4.5 (+110/-140).
The money has been on the Over as it opened 3.5 @ -155 before it was bet up to 4.5 @ +110.
FACTORS THAT FAVOR THE OVER:
The Mavericks have played at the 3rd-fastest pace in the league at home this year.
The Portland Trail Blazers have played at the 3rd-speediest tempo in the league this year, which should boost possessions for the Mavericks.
FACTORS THAT FAVOR THE UNDER:
The Mavericks have been the 6th-worst offensive rebounding offense in the league this year (offensive rebounds maintain possession, and a lack of them can therefore lead to fewer opportunities for scoring and assists).