The Dallas Mavericks are gearing up for the 2025 NBA Summer League in Las Vegas, and all eyes will be on rookie sensation Cooper Flagg as he makes his much-anticipated debut. With games scheduled to begin on July 10th against Bronny James and the Los Angeles Lakers, the Mavericks will play four preliminary games followed by a fifth matchup based on seeding.
Flagg, the No. 1 overall pick, brings elite versatility, high basketball IQ, and defensive tenacity to a Mavericks squad eager to develop young talent. During his time at Duke, Flagg averaged 19.2 points, 7.5 rebounds, and 4.2 assists per game. In Vegas, expectations are still high, though more grounded as he transitions to the NBA. A realistic projection for Flagg is around 16 points, six rebounds, five assists, and two steals per game during Summer League play.
Interestingly, head coach Jason Kidd revealed in a recent press conference that the team will occasionally test Flagg in a point guard role. Kidd stated, “We want him to be uncomfortable. That’s how you grow. Over time, those challenges make you better.” Flagg’s ability to handle the ball, initiate offense, and read defenses could make him a hybrid point-forward in the NBA, and this early test could speed up his development.
The Mavericks’ Summer League roster is filled with potential, including players like Miles Kelly and Andrew Nembhard. With Flagg leading the way, Dallas is projected to go 3–1 in preliminary games and could finish 4–1 overall, depending on the outcome of their final matchup.
While Summer League stats and wins aren’t everything, this stretch will be key for Flagg’s confidence, chemistry with teammates, and comfort in pro-level systems. The coaching staff, including new assistants with a defensive emphasis, such as Frank Vogel, will be watching closely as Flagg adapts to the NBA’s pace and physicality.
Las Vegas has already seen record ticket prices for Mavs games, signaling just how much excitement Flagg has brought to the franchise. For Dallas, the Summer League is less about titles and more about starting the Cooper Flagg era on the right foot.
If his projected averages hold and he shows growth in a lead-guard role, Flagg could leave Vegas not just as a top rookie but as a future star in the making for the Dallas Mavericks.
