Slow tempo and great defense. That's a winning Under combination and should work for this long-standing division rivalry matchup.

Boston is first in defensive efficiency during its last 10 games. The Celtics have held 6 of their last 8 opponents under 98 points. 

The 76ers also have been in the top five in defensive efficiency during the last 10 games. Their offense is in transition and James Harden is out. 
Only two teams play at a slower tempo than the 76ers.