NBA free agency is usually a weeklong frenzy. Deals get struck, then teams and players must wait a few days before they can sign those contracts. And from there, a few more months often pass before the player goes to work with his new club. Not this year.

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What promises to be a chaotic free-agent window opens in the NBA at 6 p.m. Eastern on Friday, just a couple days after the NBA draft, a mere 42 hours before signings can begin and about a week and a half before training camps around the league open.