Cooper Flagg and the Dallas Mavericks' preseason slate is in the books. They went 3-1, often looked like the potential defensive stalwart many are anticipating and got solid contributions from the rookie along the way.

It's rare to see a future Hall of Famer willingly take a backup role at the end of his career. That's not the case with Russell Westbrook, who signed with the Sacramento Kings Wednesday for his 18th NBA season.