This article was originally published on www.si.com/nba/mavericks as Cooper Flagg's Summer League run should teach Mavericks a lot. Cooper Flagg is hanging up his sneakers after the first two games with the Dallas Mavericks in the Las Vegas Summer League.

Flagg, the player coming to Dallas to save the Mavericks from last year’s disaster, is not a finished product.

Mavericks rookie Cooper Flagg has already turned heads in his first two NBA 2K26 Summer League games. The main takeaways from his early showings offer a glimpse into his potential and could help shape expectations for his fantasy basketball value in the 2025-26 season.