Speaking to TMZ Sports, Iverson's main piece of advice was for Flagg to take things "one day at a time" before providing what he called the "most important thing" he had to offer.

Cooper Flagg made his long-awaited debut on Wednesday, registering a double-double in a contest that saw the No. 1 pick and the Dallas Mavericks struggle to generate offense.

“I think we all knew he was going to be assertive,” Spurs coach Mitch Johnson said.