The ping-pong balls have spoken: Cooper Flagg might be headed to Dallas to start his NBA career. And a fan base that lost Luka Doncic this season might have a new star to cheer for. The Mavericks won the NBA draft lottery on Monday night, giving them the No. 1 pick in next month’s draft — and the first chance to take Flagg, the freshman who led Duke to the Final Four in his lone college season and the consensus player of the year.