WATCH: NBA league exec explains how new coach’s challenge and traveling rules will be called in 2019-20

Byron Spruell, NBA president of league operations, joins Rachel Nichols, Amin Elhassan and Richard Jefferson to discuss Mike D’Antoni using the first-ever coach’s challenge in the Houston Rockets vs. LA Clippers preseason game, and what the new rule will mean for the 2019-20 NBA season. He then (3:55) talks about the league’s new “focus on traveling,” and how the rule will be called during the year.