Are Jayson Tatum and Jaylen Brown in a Budding Rivalry?

SEGMENT - Jones and Keefe discuss the Celtics preseason matchup with the Philadelphia 76ers, but it wasn't the game that stole headlines as Jayson Tatum and Jaylen Brown didn't even look at each other during pregame warm ups. Did the NBA drop the ball in not making this budding rivalry more of a national TV focus?