Duke’s Cooper Flagg is set to begin his NBA journey with the Dallas Mavericks after being selected as the No. 1 pick in the 2025 draft. An emotional moment was shared with his mother, Kelly, a former basketball player herself, as his lifelong dream became a reality. Flagg will wear jersey number 32 and expressed excitement about joining the Mavericks. Duke’s Cooper Flagg is set to begin his NBA journey with the Dallas Mavericks after being selected as the No. 1 pick in the 2025 draft. An emotional moment was shared with his mother, Kelly, a former basketball player herself, as his lifelong dream became a reality. Flagg will wear jersey number 32 and expressed excitement about joining the Mavericks.