After going No. 1 overall to the Dallas Mavericks in the 2025 NBA draft, Cooper Flagg gave props to the reigning NBA champion Oklahoma City Thunder this week.

Cooper Flagg has signed with the Dallas Mavericks on a four-year rookie deal, the franchise announced. Terms of the contract for the 2025 NBA Draft's No. 1 pick were not disclosed, but Flagg is set to make $62.7 million over the deal per the NBA's rookie salary scale for the 2025-26 season.

As much as Cooper Flagg wants to win from day one, six-time NBA All-Star Jermaine O'Neal, who is now the head coach of Dynamic Prep Academy in Irving, Texas, wants Flagg to focus on one thing in his rookie season: development.