Brook Lopez Rebounds Prop is currently Over/Under 5.5 (+102/-130).
The money has been on the Over as it opened 4.5 @ -125 before it was bet up to 5.5 @ +102.
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).