By game score ("a rough measure of a player's productivity for a single game"), Kyrie Irving had his worst individual performance of the postseason in Game 1.

He was 6-of-19 from the field for 12 points, turned it over three times, totaled just two assists and was minus-19 in 37 minutes.

And, of course, the Celtics had a lot to do with that. He was defended by Jrue Holiday and Derrick White, both of whom had overwhelmingly positive marks in defensive estimated plus-minus, for the overwhelming majority of his possessions.

But Irving's poor shooting wasn't entirely a product of his opponent. Thursday, he went 2-of-8 on attempts the league's tracking cameras deemed open or wide open.

Even with the bad shooting night, Irving is averaging 22.2 points and 2.5 threes, while shooting 40.2 percent from deep in the playoffs. And Dallas faced two of the top four defenses in the league in the second and third rounds.

Boston's personnel may be better tailored to frustrate Irving than those other teams, but he'll shoot better in at least one of these upcoming games, shift momentum and help the Mavs get a win.