Porzingis recorded 20 points, six rebounds and three blocks in 21 minutes in Game 1.
The Celtics big man made an immediate impact in the first quarter and that allowed Boston to pull ahead by 17 points at the end of 12 minutes.
Porzingis did most of his scoring damage in the first quarter, where it looked like Dallas did not know how to defend the big man.
Boston could keep Porzingis in his bench role, or start him in place of Al Horford, but either way, he should play a massive role in Game 2.
The Game 1 blowout allowed Porzingis to not put too many minutes on his legs, and if Game 2 is closer, he might play around 25-30 minutes.