Day three of the 2025 Las Vegas Summer League didn’t disappoint on Saturday, with a full slate of action lighting up the court in Sin City.

The San Antonio Spurs defeated the Dallas Mavericks, 76-69, in the NBA 2K26 Summer League at Thomas & Mack Center on Saturday.

Cooper Flagg led the Mavericks with a game-high 31 points, four rebounds and one assist, while David Jones-Garcia scored 18 points off the bench for the Spurs. Here are five observations from Saturday’s game:

Flagg scored 31 points and Harper poured in 16 as Harper's San Antonio Spurs claimed a 76-69 victory over Flagg's Dallas Mavericks in an NBA Summer League showdown in Las Vegas. Despite his team being on the losing end, Flagg put on a clinic.

Cooper Flagg's summer league debut wasn't perfect. But there were flashes of greatness, and at this stage the Mavericks would be wise to let him fail.

This article was originally published on www.si.com as Cooper Flagg Thinks NBA Summer League Debut Was One of the Worst Games of His Life.

Cooper Flagg and the Dallas Mavericks return to the Vegas Summer League on Saturday for their second game against Dylan Harper and the San Antonio Spurs.

The opening day of the NBA Las Vegas Summer League provided fireworks and the debut of No. 1 overall pick Cooper Flagg, who struggled to find his shot in a dramatic win over the L