The hottest ticket for Day 1 of the NBA Las Vegas Summer League will be the highly anticipated matchup between the Dallas Mavericks and the Los Angeles Lakers, as No. 1 overall pick Cooper Flagg makes his debut against Bronny James' squad.

• WATCH: Cleveland Cavaliers vs Indiana Pacers live for free with Fubo (free trial), and by signing up with DIRECTV (free trial). You can watch the NBA Summer League on ESPN+ for $11.99 per month ($119.00 per year).