Dallas Mavericks forward Cooper Flagg has been named the NBA’s Western Conference rookie of the month for games played in the month of December, the league announced Friday.

Flagg claims the award for the second straight month, and becomes the third Maverick to earn consecutive Rookie of the Month honors.

Flagg averaged 23.5 points, 6.2 rebounds, 4.8 assists and 1.2 blocks per game through 13 appearances in December.

He totaled 306 points, 80 rebounds, 63 assist, 13 steals and 15 blocks, joining Blake Griffin, LeBron James, Ron Harper and Larry Bird as the only rookies in NBA history to record 300-75-50-10-10 in the month of December.

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Flagg tallied a career-high 42 points to go along with seven rebounds, six assists, one steal and two blocks at Utah on Dec. 15, becoming the youngest player in NBA history (18 years, 359 days) to post a 40-point game while tying Mark Aguirre’s Mavericks rookie record for points in a game.

Flagg also joined LeBron James and Luka Doncic as the only teenagers in NBA history to record 20 points, five rebounds and five assists in three consecutive games (12/23-12/27).

Drafted with the first overall pick in the 2025 NBA draft out of Duke, Flagg currently ranks first among rookies in total points (652), second in total rebounds (218), second in total assists (139), second in total steals (41) and third in total blocks (27). He is the only rookie this season to place top three in each of the five major categories.

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