Cooper Flagg, the Dallas Mavericks' No. 1 overall pick, made a highly anticipated debut in the 2025 NBA Summer League against Bronny James and the Los Angeles Lakers. The matchup generated record-breaking ticket demand, with prices reaching an average of $201 and lower bowl seats selling for $650, while courtside tickets soared to $2,500 or more, marking the most expensive Summer League tickets on record. Flagg's debut contributed to the Mavericks' narrow 87-85 victory over the Lakers. Despite some uneven and inefficient moments, Flagg showed flashes of his potential, scoring 10 points in the game. In his second Summer League appearance against the San Antonio Spurs, Flagg delivered a dominant performance with 31 points, 4 rebounds, 3 three-pointers made, and 1 block, shooting 10-of-20 from the field and 8-of-13 from the free-throw line. His performance drew praise for his poise and athleticism, with commentators noting his quickness and scoring ability. The Summer League continues to spotlight emerging talents like Flagg, Bronny James, and Spurs' Dylan Harper, who also had a strong showing with 16 points, 6 rebounds, and defensive highlights.