“Cooper the pea picker was very competitive,” Kelly Flagg, the boys’ mother, told The Athletic. “He wanted to make more money than his brothers. They only picked for about three hours in the morning before it got too hot. He was very aggressive.

Cooper Flagg will see his first action in a Dallas Mavericks’ jersey this week in NBA Summer League action. Here's what you need to know.

The Dallas Mavericks have signed No. 1 overall draft pick Cooper Flagg to his four-year rookie contract, the team announced Wednesday.