Cooper Flagg, Duke's Arianna Roberson Confirm Relationship in New TikTok Video, Photo

Dallas Mavericks star Cooper Flagg has seemingly had his relationship with Duke women's basketball center Arianna Roberson confirmed.

Roberson shared a photo of herself and Flagg in a Thursday post on her Instagram story. She also shared a TikTok video of the two on vacation.

Flagg and Roberson overlapped at Duke during the 2024-25 academic year, during which Flagg starred for the men's team while Roberson did not play due to injury.

Roberson came off the bench in 33 games of her redshirt sophomore campaign while Flagg, the top pick of the 2025 NBA draft, recorded a Rookie of the Year campaign with the Mavericks.