This was all part of the plan according to Mavericks coach Jason Kidd, who said earlier this summer the franchise wanted to make Flagg "uncomfortable" early on. Kyrie Irving will be on the shelf much of the regular season following a knee injury.

This article was originally published on www.si.com/nba/mavericks as Cooper Flagg’s trainer opens up after Mavericks pull him from Summer League.

At Duke, Flagg averaged 19.2 points, 7.5 rebounds, and 4.2 assists and earned ACC Player of the Year honors while leading the Blue Devils to the Final Four. He also won the Wooden and Naismith Player of the Year awards and was an All-American.