Top picks Cooper Flagg and Dylan Harper face off in Las Vegas on ESPN with multiple streaming services available.

Cooper Flagg will lead the Dallas Mavericks against Dylan Harper's San Antonio Spurs in NBA Summer League action on Saturday, July 12 at 4 p.m.

Flagg's debut will signify a new era for Dallas basketball. It's been just over five months since the franchise traded cornerstone Luka Dončić to the Lakers in a deal that brought back star big man Anthony Davis.

League action continues tonight with the Portland Trail Blazers facing the Memphis Grizzlies, Live from Las Vegas, Nevada.

This social media dream matchup is the most anticipated game of the 2025 NBA Summer League – the 17,923-seat Thomas & Mack Center is already sold out. According to TickPick, the current “get-in” price for a Thursday Summer League ticket is $83, which jumps to $643 for the lower bowl in the Thomas & Mack, and courtside tickets are going for $2,519.

Bronny James, the son of Los Angeles Lakers superstar LeBron James, will be playing in the summer league for the second consecutive season. So will Jameer Nelson Jr., the son of former NBA point guard Jameer Nelson. He will be on San Antonio's summer league roster.

Asa Newell and the Atlanta Hawks square up with the Boston Celtics in today’s Las Vegas NBA Summer League action.