Mavericks-Celtics Finals Preview

Ben Ladner and Jon Sauber break down the tactical and strategic battles that could swing the NBA Finals, including how the Celtics will defend Luka Doncic in the pick-and-roll, why Kristaps Porzingis is so important in the series, and much more. Plus: a discussion on how modern championship teams are built, the stylistic differences between the Celtics and Mavericks, and a note on the late Bill Walton.