He's been the Indiana Pacers' "best player at our practices for summer league." Could he break out this NBA season?

Frenzy became bedlam on the next play. Flagg talked trash to James, ran to his spot on the left wing, pivoted off the catch and nailed the shot before turning to exult with his future Mavericks varsity teammates, who cheered him on decked out in casual wear from their courtside seats.

LAS VEGAS — He missed 16 of 21 shots, including all five attempts from deep, and airballed his first and final shots. And those who saw his NBA 2K26 Summer League debut still came away with a consensus gut feeling: Cooper Flagg is right on pace to be a problem.

Boston fans will get their first look at the Summer League Celtics on Friday night, including first-round pick Hugo Gonzalez.

League showdown between Bronny James and the Los Angeles Lakers and Dallas Mavericks No. 1 pick Cooper Flagg lived up to the hype.

Cooper Flagg Gets Honest On Disappointing Summer League Debut originally appeared on Athlon Sports. Duke star Cooper Flagg finally made his NBA debut, helping the Dallas Mavericks take down the Los Angeles Lakers 87-85 in their first game of the Las Vegas Summer League.

Cooper Flagg made his NBA Summer League debut Thursday night and although he and the Dallas Mavericks earned the win, the No. 1 NBA Draft pick called it “one of the worst game of my life.”

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.

The No. 1 pick in last month’s draft scores 10 points in 32 minutes and blocks a shot that leads to the game-winning 3-pointer as Dallas edges the Lakers, 87-85. Cole Swider has 22 points and 10

The San Antonio Spurs, who played without No. 2 overall draft pick Dylan Harper, drubbed the Sixers, 111-70, in what was expected to be a showcase matchup Thursday night at Thomas & Mack Center.

Rookie center Yang Hansen will make his NBA Summer League debut as a member of the Portland Trail Blazers Friday night when they take on the Golden State Warriors in Las Vegas. However, this won’t be Yang’s first taste of summer league action.