I think Dallas will win if KP will not play, as for the latest update, the big man is questionable.
Porzingis has rare tendon issue in lower left leg, is questionable for Game 3 of NBA Finals
Game 2 was close but not almost, so they need to correct every mistake they have and should play perfect at home and consider it as a do or die game, actually every game as currently being down 0-2, they don't have the odds in winning the series.
Thanks for this info, and perhaps that's why KP is not really showing that good in game 2 as compare to his performance in game 1. So if he is not going to play, then maybe we will see lob passes by Luka and Kyrie to Lively, Gafford and even PJ Washington because that's what they are missing, easy points in that paint with that lob pass.
And most likely this is the reason why the Mavs are the favorite going into game 3, it will be at American arena in which they are comfortable and then KP is not there to man the middle against them.