The Chicago Bulls announced a four-year contract extension worth more than $17.5 million for Tom Thibodeau on Oct. 1, but the coach still hasn't signed the deal.

"The deal's done," Thibodeau insists.

Nevertheless, he wouldn't acknowledge that it had been signed because that still hasn't happened, according to several sources.

Back in his assistant coaching days with the Boston Celtics, his contracts lingered unsigned, too.