Donovan Mitchell Rebounds Prop is currently Over/Under 4.5 (+104/-125).
The money has been on the Over as it opened 4.5 @ +106 before it was bet up to 4.5 @ +104.
FACTORS THAT FAVOR THE OVER:
The Cavaliers check in as the 9th-best offensive rebounding offense in the NBA while at home this year (offensive rebounds maintain possession and can therefore produce new opportunities for scoring and assists).
FACTORS THAT FAVOR THE UNDER:
The 3rd-least up-tempo pace-of-play offense in the league over the last 5 games has been the Cavaliers.
The Boston Celtics have played at the slowest tempo in the NBA this year, which ought to decrease possessions for the Cavaliers.