Cooper Flagg Impresses in Dallas Mavericks NBA Preseason Debut

Cooper Flagg made his preseason debut as a starter for the Dallas Mavericks, playing 14 first-half minutes in a 106-89 win over a shorthanded Oklahoma City Thunder and finishing with 10 points (3-6 FG, 2-3 3PT, 2-2 FT), six rebounds, three assists and a block. After a tentative start where he sometimes overpassed, Flagg displayed advanced playmaking and defensive instincts—recording several impressive assists and a highlight-block that ignited transition offense—before resting for the second half. All 10 of his points came in the second quarter, including two 3-pointers and two free throws, as the Mavericks built a large halftime lead (they held on despite an OKC rally). The 18-year-old No. 1 overall pick out of Duke—fresh off a consensus National Player of the Year season (19.2 ppg, 7.5 rpg, 4.2 apg)—is widely expected to play significant minutes immediately and drew praise for his poise, versatility and highlight-reel plays. Dallas coach Jason Kidd said he was evaluating pace, physicality and defense in the opener, while fans and analysts noted Flagg’s advanced feel and social-media-ready highlights. The preseason victory (and Flagg’s promising debut) gives the Mavericks a tune-up before their Oct. 22 regular-season opener against the San Antonio Spurs.