Mavericks picked up a 106-89 win over the Thunder

Top pick Cooper Flagg made his preseason debut for the Dallas Mavericks on Monday, helping them beat the Oklahoma City Thunder 106-89 at Dickies Arena in Fort Worth. Playing 14 minutes, the rookie settled in after a slow start, scoring his first points with an acrobatic layup before draining a pull-up three soon after. 

He also impressed with his playmaking, assisting Dwight Powell for a dunk while running the offense. By halftime, Flagg had 10 points and six rebounds on 3-of-6 shooting as Dallas built a 26-point lead. The Thunder, coming off a preseason win over Charlotte, struggled badly early, shooting just 13-of-49 in the first half. It was a confident first showing for Flagg, who looked poised and composed in his first taste of NBA action with the Mavericks.