Gary Trent Jr. Rebounds Prop is currently Over/Under 2.5 (+110/-140).
The money has been on the Under as it opened 2.5 @ -135 before it was bet down to 2.5 @ -140.
FACTORS THAT FAVOR THE OVER:
The Bucks will likely see a spike in possessions in this game from squaring off against the 6th-most up-tempo pace-of-play offense in the NBA this year (the Cleveland Cavaliers).