Looked like to me Luka messed up his knee or leg . He was going full tilt pretty good , then bam , he was hobbling.
Want to continue to make him work and pick him up full court , no rest for that leg . While he might still drop 30 , dude causing defense let down for his team . Four Mavs gotta stop 5 Celtics who all can drive and shoot the three.
Celtics keep the game fast , run fat Luka to death , worry hire and exhaust him physically.