NBA preseason shouldn’t be taken too seriously, but it does give everyone a chance to see the latest crop of rookies for the first time, and Cooper Flagg of the Dallas Mavericks was a main attraction in that regard over the past couple of weeks.

Flagg played well enough in Dallas’ games to make Bleacher Report’s list of nine “biggest winners” from preseason.

“Cooper Flagg’s basic production (11.3 points, 4.5 rebounds, 2.8 assists, 1.3 steals and 0.8 blocks) from this preseason doesn’t leap off the screen, but several individual plays certainly have,” BR’s Andy Bailey wrote .

“From pull-up threes to explosive rim protection to solid playmaking and passing, Flagg has shown that he can be a utility player capable of filling up any of the major statistical categories.”

“He may not coll

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